Home / 7,708.17-11,562.30-2,778.60

Finding the Fourth Proportional to 7,708.17, 11,562.30 and 2,778.60

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Solution

The fourth proportional to 7,708.17, 11,562.30 and 2,778.60 is: 4,167.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.17 : 11,562.30 = 2,778.60 : x
  2. Step 2: Convert to fraction form
    7,708.17/11,562.30 = 2,778.60/x
  3. Step 3: Cross multiply
    7,708.17x = 11,562.30 × 2,778.60
  4. Step 4: Simplify right side
    7,708.17x = 32,127,006.78
  5. Step 5: Solve for x
    x = 32,127,006.78/7,708.17
  6. Step 6: Final answer
    x = 4,167.92

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1.5x scale

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.