Home / 3,287.28-4,538.28-2,280.48

Finding the Fourth Proportional to 3,287.28, 4,538.28 and 2,280.48

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Solution

The fourth proportional to 3,287.28, 4,538.28 and 2,280.48 is: 3,148.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.28 : 4,538.28 = 2,280.48 : x
  2. Step 2: Convert to fraction form
    3,287.28/4,538.28 = 2,280.48/x
  3. Step 3: Cross multiply
    3,287.28x = 4,538.28 × 2,280.48
  4. Step 4: Simplify right side
    3,287.28x = 10,349,456.77
  5. Step 5: Solve for x
    x = 10,349,456.77/3,287.28
  6. Step 6: Final answer
    x = 3,148.33

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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.