Home / 5,125.13-7,688.50-1,838.15

Finding the Fourth Proportional to 5,125.13, 7,688.50 and 1,838.15

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Solution

The fourth proportional to 5,125.13, 7,688.50 and 1,838.15 is: 2,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.13 : 7,688.50 = 1,838.15 : x
  2. Step 2: Convert to fraction form
    5,125.13/7,688.50 = 1,838.15/x
  3. Step 3: Cross multiply
    5,125.13x = 7,688.50 × 1,838.15
  4. Step 4: Simplify right side
    5,125.13x = 14,132,616.28
  5. Step 5: Solve for x
    x = 14,132,616.28/5,125.13
  6. Step 6: Final answer
    x = 2,757.51

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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.