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Finding the Fourth Proportional to 6,658.56, 9,990.44 and 2,762

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Solution

The fourth proportional to 6,658.56, 9,990.44 and 2,762 is: 4,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.56 : 9,990.44 = 2,762 : x
  2. Step 2: Convert to fraction form
    6,658.56/9,990.44 = 2,762/x
  3. Step 3: Cross multiply
    6,658.56x = 9,990.44 × 2,762
  4. Step 4: Simplify right side
    6,658.56x = 27,593,595.28
  5. Step 5: Solve for x
    x = 27,593,595.28/6,658.56
  6. Step 6: Final answer
    x = 4,144.08

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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.