Home / 7,288.40-10,932.60-3,127.70

Finding the Fourth Proportional to 7,288.40, 10,932.60 and 3,127.70

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Solution

The fourth proportional to 7,288.40, 10,932.60 and 3,127.70 is: 4,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.40 : 10,932.60 = 3,127.70 : x
  2. Step 2: Convert to fraction form
    7,288.40/10,932.60 = 3,127.70/x
  3. Step 3: Cross multiply
    7,288.40x = 10,932.60 × 3,127.70
  4. Step 4: Simplify right side
    7,288.40x = 34,193,893.02
  5. Step 5: Solve for x
    x = 34,193,893.02/7,288.40
  6. Step 6: Final answer
    x = 4,691.55

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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.