Home / 3,319.20-4,577.58-1,992.42

Finding the Fourth Proportional to 3,319.20, 4,577.58 and 1,992.42

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Solution

The fourth proportional to 3,319.20, 4,577.58 and 1,992.42 is: 2,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.20 : 4,577.58 = 1,992.42 : x
  2. Step 2: Convert to fraction form
    3,319.20/4,577.58 = 1,992.42/x
  3. Step 3: Cross multiply
    3,319.20x = 4,577.58 × 1,992.42
  4. Step 4: Simplify right side
    3,319.20x = 9,120,461.94
  5. Step 5: Solve for x
    x = 9,120,461.94/3,319.20
  6. Step 6: Final answer
    x = 2,747.79

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Half scale
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Double scale
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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.