Home / 3,472.48-5,207.76-1,621.78

Finding the Fourth Proportional to 3,472.48, 5,207.76 and 1,621.78

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Solution

The fourth proportional to 3,472.48, 5,207.76 and 1,621.78 is: 2,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.48 : 5,207.76 = 1,621.78 : x
  2. Step 2: Convert to fraction form
    3,472.48/5,207.76 = 1,621.78/x
  3. Step 3: Cross multiply
    3,472.48x = 5,207.76 × 1,621.78
  4. Step 4: Simplify right side
    3,472.48x = 8,445,841.01
  5. Step 5: Solve for x
    x = 8,445,841.01/3,472.48
  6. Step 6: Final answer
    x = 2,432.22

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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.