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Finding the Fourth Proportional to 3,332.97, 4,999.46 and 1,279.53

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Solution

The fourth proportional to 3,332.97, 4,999.46 and 1,279.53 is: 1,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332.97 : 4,999.46 = 1,279.53 : x
  2. Step 2: Convert to fraction form
    3,332.97/4,999.46 = 1,279.53/x
  3. Step 3: Cross multiply
    3,332.97x = 4,999.46 × 1,279.53
  4. Step 4: Simplify right side
    3,332.97x = 6,396,952.66
  5. Step 5: Solve for x
    x = 6,396,952.66/3,332.97
  6. Step 6: Final answer
    x = 1,919.30

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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.