Home / 5,687.76-8,528.88-2,177.92

Finding the Fourth Proportional to 5,687.76, 8,528.88 and 2,177.92

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Solution

The fourth proportional to 5,687.76, 8,528.88 and 2,177.92 is: 3,265.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.76 : 8,528.88 = 2,177.92 : x
  2. Step 2: Convert to fraction form
    5,687.76/8,528.88 = 2,177.92/x
  3. Step 3: Cross multiply
    5,687.76x = 8,528.88 × 2,177.92
  4. Step 4: Simplify right side
    5,687.76x = 18,575,218.33
  5. Step 5: Solve for x
    x = 18,575,218.33/5,687.76
  6. Step 6: Final answer
    x = 3,265.82

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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.