Home / 3,144.20-4,338.96-1,708.59

Finding the Fourth Proportional to 3,144.20, 4,338.96 and 1,708.59

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Solution

The fourth proportional to 3,144.20, 4,338.96 and 1,708.59 is: 2,357.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.20 : 4,338.96 = 1,708.59 : x
  2. Step 2: Convert to fraction form
    3,144.20/4,338.96 = 1,708.59/x
  3. Step 3: Cross multiply
    3,144.20x = 4,338.96 × 1,708.59
  4. Step 4: Simplify right side
    3,144.20x = 7,413,503.67
  5. Step 5: Solve for x
    x = 7,413,503.67/3,144.20
  6. Step 6: Final answer
    x = 2,357.83

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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.