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Finding the Fourth Proportional to 6,761.62, 9,330.11 and 3,777.07

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Solution

The fourth proportional to 6,761.62, 9,330.11 and 3,777.07 is: 5,211.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.62 : 9,330.11 = 3,777.07 : x
  2. Step 2: Convert to fraction form
    6,761.62/9,330.11 = 3,777.07/x
  3. Step 3: Cross multiply
    6,761.62x = 9,330.11 × 3,777.07
  4. Step 4: Simplify right side
    6,761.62x = 35,240,478.58
  5. Step 5: Solve for x
    x = 35,240,478.58/6,761.62
  6. Step 6: Final answer
    x = 5,211.84

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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.