Home / 5,148.14-7,722.20-1,861.24

Finding the Fourth Proportional to 5,148.14, 7,722.20 and 1,861.24

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Solution

The fourth proportional to 5,148.14, 7,722.20 and 1,861.24 is: 2,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.14 : 7,722.20 = 1,861.24 : x
  2. Step 2: Convert to fraction form
    5,148.14/7,722.20 = 1,861.24/x
  3. Step 3: Cross multiply
    5,148.14x = 7,722.20 × 1,861.24
  4. Step 4: Simplify right side
    5,148.14x = 14,372,819.61
  5. Step 5: Solve for x
    x = 14,372,819.61/5,148.14
  6. Step 6: Final answer
    x = 2,791.85

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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.