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Finding the Fourth Proportional to 3,365.28, 5,040.12 and 3,248.55

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Solution

The fourth proportional to 3,365.28, 5,040.12 and 3,248.55 is: 4,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.28 : 5,040.12 = 3,248.55 : x
  2. Step 2: Convert to fraction form
    3,365.28/5,040.12 = 3,248.55/x
  3. Step 3: Cross multiply
    3,365.28x = 5,040.12 × 3,248.55
  4. Step 4: Simplify right side
    3,365.28x = 16,373,081.83
  5. Step 5: Solve for x
    x = 16,373,081.83/3,365.28
  6. Step 6: Final answer
    x = 4,865.30

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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.