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Finding the Fourth Proportional to 6,618.94, 9,930.12 and 2,459.08

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Solution

The fourth proportional to 6,618.94, 9,930.12 and 2,459.08 is: 3,689.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.94 : 9,930.12 = 2,459.08 : x
  2. Step 2: Convert to fraction form
    6,618.94/9,930.12 = 2,459.08/x
  3. Step 3: Cross multiply
    6,618.94x = 9,930.12 × 2,459.08
  4. Step 4: Simplify right side
    6,618.94x = 24,418,997.53
  5. Step 5: Solve for x
    x = 24,418,997.53/6,618.94
  6. Step 6: Final answer
    x = 3,689.26

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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.