Home / 3,287.28-4,537.20-2,168.32

Finding the Fourth Proportional to 3,287.28, 4,537.20 and 2,168.32

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Solution

The fourth proportional to 3,287.28, 4,537.20 and 2,168.32 is: 2,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.28 : 4,537.20 = 2,168.32 : x
  2. Step 2: Convert to fraction form
    3,287.28/4,537.20 = 2,168.32/x
  3. Step 3: Cross multiply
    3,287.28x = 4,537.20 × 2,168.32
  4. Step 4: Simplify right side
    3,287.28x = 9,838,101.50
  5. Step 5: Solve for x
    x = 9,838,101.50/3,287.28
  6. Step 6: Final answer
    x = 2,992.78

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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.