Home / 5,109.52-7,662.66-2,187.04

Finding the Fourth Proportional to 5,109.52, 7,662.66 and 2,187.04

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Solution

The fourth proportional to 5,109.52, 7,662.66 and 2,187.04 is: 3,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.52 : 7,662.66 = 2,187.04 : x
  2. Step 2: Convert to fraction form
    5,109.52/7,662.66 = 2,187.04/x
  3. Step 3: Cross multiply
    5,109.52x = 7,662.66 × 2,187.04
  4. Step 4: Simplify right side
    5,109.52x = 16,758,543.93
  5. Step 5: Solve for x
    x = 16,758,543.93/5,109.52
  6. Step 6: Final answer
    x = 3,279.87

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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.