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Finding the Fourth Proportional to 6,616.95, 9,926.24 and 2,920.11

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Solution

The fourth proportional to 6,616.95, 9,926.24 and 2,920.11 is: 4,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.95 : 9,926.24 = 2,920.11 : x
  2. Step 2: Convert to fraction form
    6,616.95/9,926.24 = 2,920.11/x
  3. Step 3: Cross multiply
    6,616.95x = 9,926.24 × 2,920.11
  4. Step 4: Simplify right side
    6,616.95x = 28,985,698.09
  5. Step 5: Solve for x
    x = 28,985,698.09/6,616.95
  6. Step 6: Final answer
    x = 4,380.52

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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.