Home / 5,715.36-8,572.94-1,819.72

Finding the Fourth Proportional to 5,715.36, 8,572.94 and 1,819.72

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Solution

The fourth proportional to 5,715.36, 8,572.94 and 1,819.72 is: 2,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.36 : 8,572.94 = 1,819.72 : x
  2. Step 2: Convert to fraction form
    5,715.36/8,572.94 = 1,819.72/x
  3. Step 3: Cross multiply
    5,715.36x = 8,572.94 × 1,819.72
  4. Step 4: Simplify right side
    5,715.36x = 15,600,350.38
  5. Step 5: Solve for x
    x = 15,600,350.38/5,715.36
  6. Step 6: Final answer
    x = 2,729.55

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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.