Home / 5,519.68-8,279.28-1,359.48

Finding the Fourth Proportional to 5,519.68, 8,279.28 and 1,359.48

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Solution

The fourth proportional to 5,519.68, 8,279.28 and 1,359.48 is: 2,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.68 : 8,279.28 = 1,359.48 : x
  2. Step 2: Convert to fraction form
    5,519.68/8,279.28 = 1,359.48/x
  3. Step 3: Cross multiply
    5,519.68x = 8,279.28 × 1,359.48
  4. Step 4: Simplify right side
    5,519.68x = 11,255,515.57
  5. Step 5: Solve for x
    x = 11,255,515.57/5,519.68
  6. Step 6: Final answer
    x = 2,039.16

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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.