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Finding the Fourth Proportional to 3,725.46, 5,143.07 and 2,929.29

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Solution

The fourth proportional to 3,725.46, 5,143.07 and 2,929.29 is: 4,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.46 : 5,143.07 = 2,929.29 : x
  2. Step 2: Convert to fraction form
    3,725.46/5,143.07 = 2,929.29/x
  3. Step 3: Cross multiply
    3,725.46x = 5,143.07 × 2,929.29
  4. Step 4: Simplify right side
    3,725.46x = 15,065,543.52
  5. Step 5: Solve for x
    x = 15,065,543.52/3,725.46
  6. Step 6: Final answer
    x = 4,043.94

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1.5x scale

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.