Home / 3,127.40-4,691.76-1,179.62

Finding the Fourth Proportional to 3,127.40, 4,691.76 and 1,179.62

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Solution

The fourth proportional to 3,127.40, 4,691.76 and 1,179.62 is: 1,769.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.40 : 4,691.76 = 1,179.62 : x
  2. Step 2: Convert to fraction form
    3,127.40/4,691.76 = 1,179.62/x
  3. Step 3: Cross multiply
    3,127.40x = 4,691.76 × 1,179.62
  4. Step 4: Simplify right side
    3,127.40x = 5,534,493.93
  5. Step 5: Solve for x
    x = 5,534,493.93/3,127.40
  6. Step 6: Final answer
    x = 1,769.68

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Double scale
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1.5x scale

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.