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Finding the Fourth Proportional to 5,388.60, 8,082.90 and 1,492.68

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Solution

The fourth proportional to 5,388.60, 8,082.90 and 1,492.68 is: 2,239.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.60 : 8,082.90 = 1,492.68 : x
  2. Step 2: Convert to fraction form
    5,388.60/8,082.90 = 1,492.68/x
  3. Step 3: Cross multiply
    5,388.60x = 8,082.90 × 1,492.68
  4. Step 4: Simplify right side
    5,388.60x = 12,065,183.17
  5. Step 5: Solve for x
    x = 12,065,183.17/5,388.60
  6. Step 6: Final answer
    x = 2,239.02

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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.