Home / 2,349.12-3,520.96-1,308.88

Finding the Fourth Proportional to 2,349.12, 3,520.96 and 1,308.88

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Solution

The fourth proportional to 2,349.12, 3,520.96 and 1,308.88 is: 1,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.12 : 3,520.96 = 1,308.88 : x
  2. Step 2: Convert to fraction form
    2,349.12/3,520.96 = 1,308.88/x
  3. Step 3: Cross multiply
    2,349.12x = 3,520.96 × 1,308.88
  4. Step 4: Simplify right side
    2,349.12x = 4,608,514.12
  5. Step 5: Solve for x
    x = 4,608,514.12/2,349.12
  6. Step 6: Final answer
    x = 1,961.80

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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.