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Finding the Fourth Proportional to 6,487.06, 8,952.09 and 3,968.74

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Solution

The fourth proportional to 6,487.06, 8,952.09 and 3,968.74 is: 5,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.06 : 8,952.09 = 3,968.74 : x
  2. Step 2: Convert to fraction form
    6,487.06/8,952.09 = 3,968.74/x
  3. Step 3: Cross multiply
    6,487.06x = 8,952.09 × 3,968.74
  4. Step 4: Simplify right side
    6,487.06x = 35,528,517.67
  5. Step 5: Solve for x
    x = 35,528,517.67/6,487.06
  6. Step 6: Final answer
    x = 5,476.83

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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.