Home / 6,456.20-9,677.10-2,757.80

Finding the Fourth Proportional to 6,456.20, 9,677.10 and 2,757.80

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Solution

The fourth proportional to 6,456.20, 9,677.10 and 2,757.80 is: 4,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.20 : 9,677.10 = 2,757.80 : x
  2. Step 2: Convert to fraction form
    6,456.20/9,677.10 = 2,757.80/x
  3. Step 3: Cross multiply
    6,456.20x = 9,677.10 × 2,757.80
  4. Step 4: Simplify right side
    6,456.20x = 26,687,506.38
  5. Step 5: Solve for x
    x = 26,687,506.38/6,456.20
  6. Step 6: Final answer
    x = 4,133.62

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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.