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Finding the Fourth Proportional to 6,282.16, 8,666.60 and 3,891.50

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Solution

The fourth proportional to 6,282.16, 8,666.60 and 3,891.50 is: 5,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,282.16 : 8,666.60 = 3,891.50 : x
  2. Step 2: Convert to fraction form
    6,282.16/8,666.60 = 3,891.50/x
  3. Step 3: Cross multiply
    6,282.16x = 8,666.60 × 3,891.50
  4. Step 4: Simplify right side
    6,282.16x = 33,726,073.90
  5. Step 5: Solve for x
    x = 33,726,073.90/6,282.16
  6. Step 6: Final answer
    x = 5,368.55

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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.