Home / 5,101.68-7,654.92-1,817.28

Finding the Fourth Proportional to 5,101.68, 7,654.92 and 1,817.28

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Solution

The fourth proportional to 5,101.68, 7,654.92 and 1,817.28 is: 2,726.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.68 : 7,654.92 = 1,817.28 : x
  2. Step 2: Convert to fraction form
    5,101.68/7,654.92 = 1,817.28/x
  3. Step 3: Cross multiply
    5,101.68x = 7,654.92 × 1,817.28
  4. Step 4: Simplify right side
    5,101.68x = 13,911,133.02
  5. Step 5: Solve for x
    x = 13,911,133.02/5,101.68
  6. Step 6: Final answer
    x = 2,726.77

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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.