Home / 5,427.20-8,139.24-1,532

Finding the Fourth Proportional to 5,427.20, 8,139.24 and 1,532

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Solution

The fourth proportional to 5,427.20, 8,139.24 and 1,532 is: 2,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.20 : 8,139.24 = 1,532 : x
  2. Step 2: Convert to fraction form
    5,427.20/8,139.24 = 1,532/x
  3. Step 3: Cross multiply
    5,427.20x = 8,139.24 × 1,532
  4. Step 4: Simplify right side
    5,427.20x = 12,469,315.68
  5. Step 5: Solve for x
    x = 12,469,315.68/5,427.20
  6. Step 6: Final answer
    x = 2,297.56

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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.