Home / 3,229.23-4,455.90-1,812.75

Finding the Fourth Proportional to 3,229.23, 4,455.90 and 1,812.75

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Solution

The fourth proportional to 3,229.23, 4,455.90 and 1,812.75 is: 2,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.23 : 4,455.90 = 1,812.75 : x
  2. Step 2: Convert to fraction form
    3,229.23/4,455.90 = 1,812.75/x
  3. Step 3: Cross multiply
    3,229.23x = 4,455.90 × 1,812.75
  4. Step 4: Simplify right side
    3,229.23x = 8,077,432.73
  5. Step 5: Solve for x
    x = 8,077,432.73/3,229.23
  6. Step 6: Final answer
    x = 2,501.35

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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.