Home / 5,691.34-7,854.45-3,173.62

Finding the Fourth Proportional to 5,691.34, 7,854.45 and 3,173.62

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Solution

The fourth proportional to 5,691.34, 7,854.45 and 3,173.62 is: 4,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.34 : 7,854.45 = 3,173.62 : x
  2. Step 2: Convert to fraction form
    5,691.34/7,854.45 = 3,173.62/x
  3. Step 3: Cross multiply
    5,691.34x = 7,854.45 × 3,173.62
  4. Step 4: Simplify right side
    5,691.34x = 24,927,039.61
  5. Step 5: Solve for x
    x = 24,927,039.61/5,691.34
  6. Step 6: Final answer
    x = 4,379.82

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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.