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Finding the Fourth Proportional to 5,492.72, 8,242.08 and 3,618.56

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Solution

The fourth proportional to 5,492.72, 8,242.08 and 3,618.56 is: 5,429.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,492.72 : 8,242.08 = 3,618.56 : x
  2. Step 2: Convert to fraction form
    5,492.72/8,242.08 = 3,618.56/x
  3. Step 3: Cross multiply
    5,492.72x = 8,242.08 × 3,618.56
  4. Step 4: Simplify right side
    5,492.72x = 29,824,461.00
  5. Step 5: Solve for x
    x = 29,824,461.00/5,492.72
  6. Step 6: Final answer
    x = 5,429.82

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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.