Home / 5,617.80-8,426.61-2,687.22

Finding the Fourth Proportional to 5,617.80, 8,426.61 and 2,687.22

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Solution

The fourth proportional to 5,617.80, 8,426.61 and 2,687.22 is: 4,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.80 : 8,426.61 = 2,687.22 : x
  2. Step 2: Convert to fraction form
    5,617.80/8,426.61 = 2,687.22/x
  3. Step 3: Cross multiply
    5,617.80x = 8,426.61 × 2,687.22
  4. Step 4: Simplify right side
    5,617.80x = 22,644,154.92
  5. Step 5: Solve for x
    x = 22,644,154.92/5,617.80
  6. Step 6: Final answer
    x = 4,030.79

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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.