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Finding the Fourth Proportional to 3,301.80, 4,951.86 and 1,984.80

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Solution

The fourth proportional to 3,301.80, 4,951.86 and 1,984.80 is: 2,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,301.80 : 4,951.86 = 1,984.80 : x
  2. Step 2: Convert to fraction form
    3,301.80/4,951.86 = 1,984.80/x
  3. Step 3: Cross multiply
    3,301.80x = 4,951.86 × 1,984.80
  4. Step 4: Simplify right side
    3,301.80x = 9,828,451.73
  5. Step 5: Solve for x
    x = 9,828,451.73/3,301.80
  6. Step 6: Final answer
    x = 2,976.70

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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.