Home / 4,191.12-5,785.32-3,146.20

Finding the Fourth Proportional to 4,191.12, 5,785.32 and 3,146.20

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Solution

The fourth proportional to 4,191.12, 5,785.32 and 3,146.20 is: 4,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.12 : 5,785.32 = 3,146.20 : x
  2. Step 2: Convert to fraction form
    4,191.12/5,785.32 = 3,146.20/x
  3. Step 3: Cross multiply
    4,191.12x = 5,785.32 × 3,146.20
  4. Step 4: Simplify right side
    4,191.12x = 18,201,773.78
  5. Step 5: Solve for x
    x = 18,201,773.78/4,191.12
  6. Step 6: Final answer
    x = 4,342.94

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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.