Home / 4,067.79-5,613.30-2,275.12

Finding the Fourth Proportional to 4,067.79, 5,613.30 and 2,275.12

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Solution

The fourth proportional to 4,067.79, 5,613.30 and 2,275.12 is: 3,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,067.79 : 5,613.30 = 2,275.12 : x
  2. Step 2: Convert to fraction form
    4,067.79/5,613.30 = 2,275.12/x
  3. Step 3: Cross multiply
    4,067.79x = 5,613.30 × 2,275.12
  4. Step 4: Simplify right side
    4,067.79x = 12,770,938.11
  5. Step 5: Solve for x
    x = 12,770,938.11/4,067.79
  6. Step 6: Final answer
    x = 3,139.53

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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.