Home / 5,324.13-7,989.86-1,861.38

Finding the Fourth Proportional to 5,324.13, 7,989.86 and 1,861.38

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Solution

The fourth proportional to 5,324.13, 7,989.86 and 1,861.38 is: 2,793.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.13 : 7,989.86 = 1,861.38 : x
  2. Step 2: Convert to fraction form
    5,324.13/7,989.86 = 1,861.38/x
  3. Step 3: Cross multiply
    5,324.13x = 7,989.86 × 1,861.38
  4. Step 4: Simplify right side
    5,324.13x = 14,872,165.61
  5. Step 5: Solve for x
    x = 14,872,165.61/5,324.13
  6. Step 6: Final answer
    x = 2,793.35

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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.