Home / 2,642,871.36-3,646,537.74-1,555,190.40

Finding the Fourth Proportional to 2,642,871.36, 3,646,537.74 and 1,555,190.40

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Solution

The fourth proportional to 2,642,871.36, 3,646,537.74 and 1,555,190.40 is: 2,145,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,871.36 : 3,646,537.74 = 1,555,190.40 : x
  2. Step 2: Convert to fraction form
    2,642,871.36/3,646,537.74 = 1,555,190.40/x
  3. Step 3: Cross multiply
    2,642,871.36x = 3,646,537.74 × 1,555,190.40
  4. Step 4: Simplify right side
    2,642,871.36x = 5,671,060,486,485.70
  5. Step 5: Solve for x
    x = 5,671,060,486,485.70/2,642,871.36
  6. Step 6: Final answer
    x = 2,145,795.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.