Home / 2,100,421.41-3,151,192.81-752,720.25

Finding the Fourth Proportional to 2,100,421.41, 3,151,192.81 and 752,720.25

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Solution

The fourth proportional to 2,100,421.41, 3,151,192.81 and 752,720.25 is: 1,129,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,421.41 : 3,151,192.81 = 752,720.25 : x
  2. Step 2: Convert to fraction form
    2,100,421.41/3,151,192.81 = 752,720.25/x
  3. Step 3: Cross multiply
    2,100,421.41x = 3,151,192.81 × 752,720.25
  4. Step 4: Simplify right side
    2,100,421.41x = 2,371,966,643,606.66
  5. Step 5: Solve for x
    x = 2,371,966,643,606.66/2,100,421.41
  6. Step 6: Final answer
    x = 1,129,281.31

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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.