Home / 5,510.38-8,267.19-2,221.78

Finding the Fourth Proportional to 5,510.38, 8,267.19 and 2,221.78

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Solution

The fourth proportional to 5,510.38, 8,267.19 and 2,221.78 is: 3,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.38 : 8,267.19 = 2,221.78 : x
  2. Step 2: Convert to fraction form
    5,510.38/8,267.19 = 2,221.78/x
  3. Step 3: Cross multiply
    5,510.38x = 8,267.19 × 2,221.78
  4. Step 4: Simplify right side
    5,510.38x = 18,367,877.40
  5. Step 5: Solve for x
    x = 18,367,877.40/5,510.38
  6. Step 6: Final answer
    x = 3,333.32

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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.