Home / 5,715.25-8,572.87-1,819.65

Finding the Fourth Proportional to 5,715.25, 8,572.87 and 1,819.65

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Solution

The fourth proportional to 5,715.25, 8,572.87 and 1,819.65 is: 2,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.25 : 8,572.87 = 1,819.65 : x
  2. Step 2: Convert to fraction form
    5,715.25/8,572.87 = 1,819.65/x
  3. Step 3: Cross multiply
    5,715.25x = 8,572.87 × 1,819.65
  4. Step 4: Simplify right side
    5,715.25x = 15,599,641.42
  5. Step 5: Solve for x
    x = 15,599,641.42/5,715.25
  6. Step 6: Final answer
    x = 2,729.48

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Similar ratio
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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.