Home / 7,217.86-9,960.20-4,031.04

Finding the Fourth Proportional to 7,217.86, 9,960.20 and 4,031.04

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Solution

The fourth proportional to 7,217.86, 9,960.20 and 4,031.04 is: 5,562.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.86 : 9,960.20 = 4,031.04 : x
  2. Step 2: Convert to fraction form
    7,217.86/9,960.20 = 4,031.04/x
  3. Step 3: Cross multiply
    7,217.86x = 9,960.20 × 4,031.04
  4. Step 4: Simplify right side
    7,217.86x = 40,149,964.61
  5. Step 5: Solve for x
    x = 40,149,964.61/7,217.86
  6. Step 6: Final answer
    x = 5,562.59

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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.