Home / 5,245-7,867.50-2,167.08

Finding the Fourth Proportional to 5,245, 7,867.50 and 2,167.08

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Solution

The fourth proportional to 5,245, 7,867.50 and 2,167.08 is: 3,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245 : 7,867.50 = 2,167.08 : x
  2. Step 2: Convert to fraction form
    5,245/7,867.50 = 2,167.08/x
  3. Step 3: Cross multiply
    5,245x = 7,867.50 × 2,167.08
  4. Step 4: Simplify right side
    5,245x = 17,049,501.90
  5. Step 5: Solve for x
    x = 17,049,501.90/5,245
  6. Step 6: Final answer
    x = 3,250.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.