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Finding the Fourth Proportional to 3,549.38, 4,904.28 and 2,919.38

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Solution

The fourth proportional to 3,549.38, 4,904.28 and 2,919.38 is: 4,033.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.38 : 4,904.28 = 2,919.38 : x
  2. Step 2: Convert to fraction form
    3,549.38/4,904.28 = 2,919.38/x
  3. Step 3: Cross multiply
    3,549.38x = 4,904.28 × 2,919.38
  4. Step 4: Simplify right side
    3,549.38x = 14,317,432.43
  5. Step 5: Solve for x
    x = 14,317,432.43/3,549.38
  6. Step 6: Final answer
    x = 4,033.79

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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.