Home / 5,270.92-7,899.56-2,147.30

Finding the Fourth Proportional to 5,270.92, 7,899.56 and 2,147.30

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Solution

The fourth proportional to 5,270.92, 7,899.56 and 2,147.30 is: 3,218.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.92 : 7,899.56 = 2,147.30 : x
  2. Step 2: Convert to fraction form
    5,270.92/7,899.56 = 2,147.30/x
  3. Step 3: Cross multiply
    5,270.92x = 7,899.56 × 2,147.30
  4. Step 4: Simplify right side
    5,270.92x = 16,962,725.19
  5. Step 5: Solve for x
    x = 16,962,725.19/5,270.92
  6. Step 6: Final answer
    x = 3,218.17

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1.5x scale

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.