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Finding the Fourth Proportional to 5,245.84, 7,239 and 3,008.62

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Solution

The fourth proportional to 5,245.84, 7,239 and 3,008.62 is: 4,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.84 : 7,239 = 3,008.62 : x
  2. Step 2: Convert to fraction form
    5,245.84/7,239 = 3,008.62/x
  3. Step 3: Cross multiply
    5,245.84x = 7,239 × 3,008.62
  4. Step 4: Simplify right side
    5,245.84x = 21,779,400.18
  5. Step 5: Solve for x
    x = 21,779,400.18/5,245.84
  6. Step 6: Final answer
    x = 4,151.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.