Home / 3,185.60-4,397.36-2,853.44

Finding the Fourth Proportional to 3,185.60, 4,397.36 and 2,853.44

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Solution

The fourth proportional to 3,185.60, 4,397.36 and 2,853.44 is: 3,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.60 : 4,397.36 = 2,853.44 : x
  2. Step 2: Convert to fraction form
    3,185.60/4,397.36 = 2,853.44/x
  3. Step 3: Cross multiply
    3,185.60x = 4,397.36 × 2,853.44
  4. Step 4: Simplify right side
    3,185.60x = 12,547,602.92
  5. Step 5: Solve for x
    x = 12,547,602.92/3,185.60
  6. Step 6: Final answer
    x = 3,938.85

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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.