Home / 5,388.28-8,082.60-1,492.72

Finding the Fourth Proportional to 5,388.28, 8,082.60 and 1,492.72

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Solution

The fourth proportional to 5,388.28, 8,082.60 and 1,492.72 is: 2,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.28 : 8,082.60 = 1,492.72 : x
  2. Step 2: Convert to fraction form
    5,388.28/8,082.60 = 1,492.72/x
  3. Step 3: Cross multiply
    5,388.28x = 8,082.60 × 1,492.72
  4. Step 4: Simplify right side
    5,388.28x = 12,065,058.67
  5. Step 5: Solve for x
    x = 12,065,058.67/5,388.28
  6. Step 6: Final answer
    x = 2,239.13

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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.