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Finding the Fourth Proportional to 6,650.95, 9,178.12 and 3,666.78

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Solution

The fourth proportional to 6,650.95, 9,178.12 and 3,666.78 is: 5,060.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.95 : 9,178.12 = 3,666.78 : x
  2. Step 2: Convert to fraction form
    6,650.95/9,178.12 = 3,666.78/x
  3. Step 3: Cross multiply
    6,650.95x = 9,178.12 × 3,666.78
  4. Step 4: Simplify right side
    6,650.95x = 33,654,186.94
  5. Step 5: Solve for x
    x = 33,654,186.94/6,650.95
  6. Step 6: Final answer
    x = 5,060.06

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1.5x scale

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.