Home / 5,123.44-7,685.36-1,791.04

Finding the Fourth Proportional to 5,123.44, 7,685.36 and 1,791.04

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Solution

The fourth proportional to 5,123.44, 7,685.36 and 1,791.04 is: 2,686.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.44 : 7,685.36 = 1,791.04 : x
  2. Step 2: Convert to fraction form
    5,123.44/7,685.36 = 1,791.04/x
  3. Step 3: Cross multiply
    5,123.44x = 7,685.36 × 1,791.04
  4. Step 4: Simplify right side
    5,123.44x = 13,764,753.48
  5. Step 5: Solve for x
    x = 13,764,753.48/5,123.44
  6. Step 6: Final answer
    x = 2,686.62

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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.