Home / 5,760.78-8,638.92-2,061.90

Finding the Fourth Proportional to 5,760.78, 8,638.92 and 2,061.90

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Solution

The fourth proportional to 5,760.78, 8,638.92 and 2,061.90 is: 3,092.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.78 : 8,638.92 = 2,061.90 : x
  2. Step 2: Convert to fraction form
    5,760.78/8,638.92 = 2,061.90/x
  3. Step 3: Cross multiply
    5,760.78x = 8,638.92 × 2,061.90
  4. Step 4: Simplify right side
    5,760.78x = 17,812,589.15
  5. Step 5: Solve for x
    x = 17,812,589.15/5,760.78
  6. Step 6: Final answer
    x = 3,092.04

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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.