Home / 5,632.80-7,775.20-3,275.68

Finding the Fourth Proportional to 5,632.80, 7,775.20 and 3,275.68

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Solution

The fourth proportional to 5,632.80, 7,775.20 and 3,275.68 is: 4,521.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,632.80 : 7,775.20 = 3,275.68 : x
  2. Step 2: Convert to fraction form
    5,632.80/7,775.20 = 3,275.68/x
  3. Step 3: Cross multiply
    5,632.80x = 7,775.20 × 3,275.68
  4. Step 4: Simplify right side
    5,632.80x = 25,469,067.14
  5. Step 5: Solve for x
    x = 25,469,067.14/5,632.80
  6. Step 6: Final answer
    x = 4,521.56

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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.