Home / 5,102.13-7,654.63-1,815.56

Finding the Fourth Proportional to 5,102.13, 7,654.63 and 1,815.56

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Solution

The fourth proportional to 5,102.13, 7,654.63 and 1,815.56 is: 2,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.13 : 7,654.63 = 1,815.56 : x
  2. Step 2: Convert to fraction form
    5,102.13/7,654.63 = 1,815.56/x
  3. Step 3: Cross multiply
    5,102.13x = 7,654.63 × 1,815.56
  4. Step 4: Simplify right side
    5,102.13x = 13,897,440.04
  5. Step 5: Solve for x
    x = 13,897,440.04/5,102.13
  6. Step 6: Final answer
    x = 2,723.85

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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.