Home / 7,086.62-9,779.10-4,061.78

Finding the Fourth Proportional to 7,086.62, 9,779.10 and 4,061.78

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Solution

The fourth proportional to 7,086.62, 9,779.10 and 4,061.78 is: 5,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.62 : 9,779.10 = 4,061.78 : x
  2. Step 2: Convert to fraction form
    7,086.62/9,779.10 = 4,061.78/x
  3. Step 3: Cross multiply
    7,086.62x = 9,779.10 × 4,061.78
  4. Step 4: Simplify right side
    7,086.62x = 39,720,552.80
  5. Step 5: Solve for x
    x = 39,720,552.80/7,086.62
  6. Step 6: Final answer
    x = 5,605.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.