Home / 5,427.12-8,125.28-3,572.64

Finding the Fourth Proportional to 5,427.12, 8,125.28 and 3,572.64

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Solution

The fourth proportional to 5,427.12, 8,125.28 and 3,572.64 is: 5,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.12 : 8,125.28 = 3,572.64 : x
  2. Step 2: Convert to fraction form
    5,427.12/8,125.28 = 3,572.64/x
  3. Step 3: Cross multiply
    5,427.12x = 8,125.28 × 3,572.64
  4. Step 4: Simplify right side
    5,427.12x = 29,028,682.48
  5. Step 5: Solve for x
    x = 29,028,682.48/5,427.12
  6. Step 6: Final answer
    x = 5,348.82

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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.