Home / 3,217.11-4,439.60-1,891.58

Finding the Fourth Proportional to 3,217.11, 4,439.60 and 1,891.58

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Solution

The fourth proportional to 3,217.11, 4,439.60 and 1,891.58 is: 2,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.11 : 4,439.60 = 1,891.58 : x
  2. Step 2: Convert to fraction form
    3,217.11/4,439.60 = 1,891.58/x
  3. Step 3: Cross multiply
    3,217.11x = 4,439.60 × 1,891.58
  4. Step 4: Simplify right side
    3,217.11x = 8,397,841.10
  5. Step 5: Solve for x
    x = 8,397,841.10/3,217.11
  6. Step 6: Final answer
    x = 2,610.37

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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.