Home / 7,785.28-11,677.92-2,591.16

Finding the Fourth Proportional to 7,785.28, 11,677.92 and 2,591.16

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Solution

The fourth proportional to 7,785.28, 11,677.92 and 2,591.16 is: 3,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.28 : 11,677.92 = 2,591.16 : x
  2. Step 2: Convert to fraction form
    7,785.28/11,677.92 = 2,591.16/x
  3. Step 3: Cross multiply
    7,785.28x = 11,677.92 × 2,591.16
  4. Step 4: Simplify right side
    7,785.28x = 30,259,320.25
  5. Step 5: Solve for x
    x = 30,259,320.25/7,785.28
  6. Step 6: Final answer
    x = 3,886.73

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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.