Home / 2,628,131.40-3,942,197.10-1,683,347.40

Finding the Fourth Proportional to 2,628,131.40, 3,942,197.10 and 1,683,347.40

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Solution

The fourth proportional to 2,628,131.40, 3,942,197.10 and 1,683,347.40 is: 2,525,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,131.40 : 3,942,197.10 = 1,683,347.40 : x
  2. Step 2: Convert to fraction form
    2,628,131.40/3,942,197.10 = 1,683,347.40/x
  3. Step 3: Cross multiply
    2,628,131.40x = 3,942,197.10 × 1,683,347.40
  4. Step 4: Simplify right side
    2,628,131.40x = 6,636,087,238,572.54
  5. Step 5: Solve for x
    x = 6,636,087,238,572.54/2,628,131.40
  6. Step 6: Final answer
    x = 2,525,021.10

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Double scale
Find fourth proportional to 2,628,132.40, 3,942,198.60 and 1,683,348.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.