Home / 3,988.24-5,976.76-3,400.20

Finding the Fourth Proportional to 3,988.24, 5,976.76 and 3,400.20

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Solution

The fourth proportional to 3,988.24, 5,976.76 and 3,400.20 is: 5,095.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.24 : 5,976.76 = 3,400.20 : x
  2. Step 2: Convert to fraction form
    3,988.24/5,976.76 = 3,400.20/x
  3. Step 3: Cross multiply
    3,988.24x = 5,976.76 × 3,400.20
  4. Step 4: Simplify right side
    3,988.24x = 20,322,179.35
  5. Step 5: Solve for x
    x = 20,322,179.35/3,988.24
  6. Step 6: Final answer
    x = 5,095.53

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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.