Home / 3,148.98-4,722.78-2,279.64

Finding the Fourth Proportional to 3,148.98, 4,722.78 and 2,279.64

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Solution

The fourth proportional to 3,148.98, 4,722.78 and 2,279.64 is: 3,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.98 : 4,722.78 = 2,279.64 : x
  2. Step 2: Convert to fraction form
    3,148.98/4,722.78 = 2,279.64/x
  3. Step 3: Cross multiply
    3,148.98x = 4,722.78 × 2,279.64
  4. Step 4: Simplify right side
    3,148.98x = 10,766,238.20
  5. Step 5: Solve for x
    x = 10,766,238.20/3,148.98
  6. Step 6: Final answer
    x = 3,418.96

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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.