Home / 5,718.12-7,891.20-3,200.24

Finding the Fourth Proportional to 5,718.12, 7,891.20 and 3,200.24

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Solution

The fourth proportional to 5,718.12, 7,891.20 and 3,200.24 is: 4,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.12 : 7,891.20 = 3,200.24 : x
  2. Step 2: Convert to fraction form
    5,718.12/7,891.20 = 3,200.24/x
  3. Step 3: Cross multiply
    5,718.12x = 7,891.20 × 3,200.24
  4. Step 4: Simplify right side
    5,718.12x = 25,253,694.43
  5. Step 5: Solve for x
    x = 25,253,694.43/5,718.12
  6. Step 6: Final answer
    x = 4,416.43

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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.