Home / 3,143.73-4,336.50-1,962.75

Finding the Fourth Proportional to 3,143.73, 4,336.50 and 1,962.75

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Solution

The fourth proportional to 3,143.73, 4,336.50 and 1,962.75 is: 2,707.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.73 : 4,336.50 = 1,962.75 : x
  2. Step 2: Convert to fraction form
    3,143.73/4,336.50 = 1,962.75/x
  3. Step 3: Cross multiply
    3,143.73x = 4,336.50 × 1,962.75
  4. Step 4: Simplify right side
    3,143.73x = 8,511,465.38
  5. Step 5: Solve for x
    x = 8,511,465.38/3,143.73
  6. Step 6: Final answer
    x = 2,707.44

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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.