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Finding the Fourth Proportional to 3,079.68, 4,620.48 and 1,348.48

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Solution

The fourth proportional to 3,079.68, 4,620.48 and 1,348.48 is: 2,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.68 : 4,620.48 = 1,348.48 : x
  2. Step 2: Convert to fraction form
    3,079.68/4,620.48 = 1,348.48/x
  3. Step 3: Cross multiply
    3,079.68x = 4,620.48 × 1,348.48
  4. Step 4: Simplify right side
    3,079.68x = 6,230,624.87
  5. Step 5: Solve for x
    x = 6,230,624.87/3,079.68
  6. Step 6: Final answer
    x = 2,023.14

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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.