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Finding the Fourth Proportional to 6,167.20, 8,510.16 and 3,515.20

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Solution

The fourth proportional to 6,167.20, 8,510.16 and 3,515.20 is: 4,850.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,167.20 : 8,510.16 = 3,515.20 : x
  2. Step 2: Convert to fraction form
    6,167.20/8,510.16 = 3,515.20/x
  3. Step 3: Cross multiply
    6,167.20x = 8,510.16 × 3,515.20
  4. Step 4: Simplify right side
    6,167.20x = 29,914,914.43
  5. Step 5: Solve for x
    x = 29,914,914.43/6,167.20
  6. Step 6: Final answer
    x = 4,850.65

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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.