Home / 5,255.12-7,882.72-1,359.44

Finding the Fourth Proportional to 5,255.12, 7,882.72 and 1,359.44

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Solution

The fourth proportional to 5,255.12, 7,882.72 and 1,359.44 is: 2,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.12 : 7,882.72 = 1,359.44 : x
  2. Step 2: Convert to fraction form
    5,255.12/7,882.72 = 1,359.44/x
  3. Step 3: Cross multiply
    5,255.12x = 7,882.72 × 1,359.44
  4. Step 4: Simplify right side
    5,255.12x = 10,716,084.88
  5. Step 5: Solve for x
    x = 10,716,084.88/5,255.12
  6. Step 6: Final answer
    x = 2,039.17

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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.