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Finding the Fourth Proportional to 3,291.28, 4,928.28 and 2,248.84

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Solution

The fourth proportional to 3,291.28, 4,928.28 and 2,248.84 is: 3,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.28 : 4,928.28 = 2,248.84 : x
  2. Step 2: Convert to fraction form
    3,291.28/4,928.28 = 2,248.84/x
  3. Step 3: Cross multiply
    3,291.28x = 4,928.28 × 2,248.84
  4. Step 4: Simplify right side
    3,291.28x = 11,082,913.20
  5. Step 5: Solve for x
    x = 11,082,913.20/3,291.28
  6. Step 6: Final answer
    x = 3,367.36

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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.