Home / 1,640.31-2,452.98-1,224.13

Finding the Fourth Proportional to 1,640.31, 2,452.98 and 1,224.13

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Solution

The fourth proportional to 1,640.31, 2,452.98 and 1,224.13 is: 1,830.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.31 : 2,452.98 = 1,224.13 : x
  2. Step 2: Convert to fraction form
    1,640.31/2,452.98 = 1,224.13/x
  3. Step 3: Cross multiply
    1,640.31x = 2,452.98 × 1,224.13
  4. Step 4: Simplify right side
    1,640.31x = 3,002,772.92
  5. Step 5: Solve for x
    x = 3,002,772.92/1,640.31
  6. Step 6: Final answer
    x = 1,830.61

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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.