Home / 5,127.71-7,691.61-1,840.83

Finding the Fourth Proportional to 5,127.71, 7,691.61 and 1,840.83

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Solution

The fourth proportional to 5,127.71, 7,691.61 and 1,840.83 is: 2,761.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.71 : 7,691.61 = 1,840.83 : x
  2. Step 2: Convert to fraction form
    5,127.71/7,691.61 = 1,840.83/x
  3. Step 3: Cross multiply
    5,127.71x = 7,691.61 × 1,840.83
  4. Step 4: Simplify right side
    5,127.71x = 14,158,979.04
  5. Step 5: Solve for x
    x = 14,158,979.04/5,127.71
  6. Step 6: Final answer
    x = 2,761.27

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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.