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Finding the Fourth Proportional to 6,882.60, 9,497.81 and 3,899.18

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Solution

The fourth proportional to 6,882.60, 9,497.81 and 3,899.18 is: 5,380.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,882.60 : 9,497.81 = 3,899.18 : x
  2. Step 2: Convert to fraction form
    6,882.60/9,497.81 = 3,899.18/x
  3. Step 3: Cross multiply
    6,882.60x = 9,497.81 × 3,899.18
  4. Step 4: Simplify right side
    6,882.60x = 37,033,603.81
  5. Step 5: Solve for x
    x = 37,033,603.81/6,882.60
  6. Step 6: Final answer
    x = 5,380.76

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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.