Home / 5,691.36-8,538.96-2,226.72

Finding the Fourth Proportional to 5,691.36, 8,538.96 and 2,226.72

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Solution

The fourth proportional to 5,691.36, 8,538.96 and 2,226.72 is: 3,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.36 : 8,538.96 = 2,226.72 : x
  2. Step 2: Convert to fraction form
    5,691.36/8,538.96 = 2,226.72/x
  3. Step 3: Cross multiply
    5,691.36x = 8,538.96 × 2,226.72
  4. Step 4: Simplify right side
    5,691.36x = 19,013,873.01
  5. Step 5: Solve for x
    x = 19,013,873.01/5,691.36
  6. Step 6: Final answer
    x = 3,340.83

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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.