Home / 2,929.20-4,042.10-1,602.87

Finding the Fourth Proportional to 2,929.20, 4,042.10 and 1,602.87

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Solution

The fourth proportional to 2,929.20, 4,042.10 and 1,602.87 is: 2,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.20 : 4,042.10 = 1,602.87 : x
  2. Step 2: Convert to fraction form
    2,929.20/4,042.10 = 1,602.87/x
  3. Step 3: Cross multiply
    2,929.20x = 4,042.10 × 1,602.87
  4. Step 4: Simplify right side
    2,929.20x = 6,478,952.81
  5. Step 5: Solve for x
    x = 6,478,952.81/2,929.20
  6. Step 6: Final answer
    x = 2,211.85

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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.