Home / 5,138.24-7,706.08-2,217.92

Finding the Fourth Proportional to 5,138.24, 7,706.08 and 2,217.92

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Solution

The fourth proportional to 5,138.24, 7,706.08 and 2,217.92 is: 3,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.24 : 7,706.08 = 2,217.92 : x
  2. Step 2: Convert to fraction form
    5,138.24/7,706.08 = 2,217.92/x
  3. Step 3: Cross multiply
    5,138.24x = 7,706.08 × 2,217.92
  4. Step 4: Simplify right side
    5,138.24x = 17,091,468.95
  5. Step 5: Solve for x
    x = 17,091,468.95/5,138.24
  6. Step 6: Final answer
    x = 3,326.33

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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.