Home / 3,761.65-5,641.38-1,129.04

Finding the Fourth Proportional to 3,761.65, 5,641.38 and 1,129.04

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Solution

The fourth proportional to 3,761.65, 5,641.38 and 1,129.04 is: 1,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.65 : 5,641.38 = 1,129.04 : x
  2. Step 2: Convert to fraction form
    3,761.65/5,641.38 = 1,129.04/x
  3. Step 3: Cross multiply
    3,761.65x = 5,641.38 × 1,129.04
  4. Step 4: Simplify right side
    3,761.65x = 6,369,343.68
  5. Step 5: Solve for x
    x = 6,369,343.68/3,761.65
  6. Step 6: Final answer
    x = 1,693.23

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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.