Home / 5,127.30-7,691.76-1,841.20

Finding the Fourth Proportional to 5,127.30, 7,691.76 and 1,841.20

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Solution

The fourth proportional to 5,127.30, 7,691.76 and 1,841.20 is: 2,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.30 : 7,691.76 = 1,841.20 : x
  2. Step 2: Convert to fraction form
    5,127.30/7,691.76 = 1,841.20/x
  3. Step 3: Cross multiply
    5,127.30x = 7,691.76 × 1,841.20
  4. Step 4: Simplify right side
    5,127.30x = 14,162,049.28
  5. Step 5: Solve for x
    x = 14,162,049.28/5,127.30
  6. Step 6: Final answer
    x = 2,762.09

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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.