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Finding the Fourth Proportional to 6,650.61, 9,178.01 and 3,818.48

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Solution

The fourth proportional to 6,650.61, 9,178.01 and 3,818.48 is: 5,269.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.61 : 9,178.01 = 3,818.48 : x
  2. Step 2: Convert to fraction form
    6,650.61/9,178.01 = 3,818.48/x
  3. Step 3: Cross multiply
    6,650.61x = 9,178.01 × 3,818.48
  4. Step 4: Simplify right side
    6,650.61x = 35,045,996.96
  5. Step 5: Solve for x
    x = 35,045,996.96/6,650.61
  6. Step 6: Final answer
    x = 5,269.59

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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.