Home / 3,236.90-4,463.42-2,489.21

Finding the Fourth Proportional to 3,236.90, 4,463.42 and 2,489.21

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Solution

The fourth proportional to 3,236.90, 4,463.42 and 2,489.21 is: 3,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.90 : 4,463.42 = 2,489.21 : x
  2. Step 2: Convert to fraction form
    3,236.90/4,463.42 = 2,489.21/x
  3. Step 3: Cross multiply
    3,236.90x = 4,463.42 × 2,489.21
  4. Step 4: Simplify right side
    3,236.90x = 11,110,389.70
  5. Step 5: Solve for x
    x = 11,110,389.70/3,236.90
  6. Step 6: Final answer
    x = 3,432.42

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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.