Home / 3,229.11-4,456.13-1,970.08

Finding the Fourth Proportional to 3,229.11, 4,456.13 and 1,970.08

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Solution

The fourth proportional to 3,229.11, 4,456.13 and 1,970.08 is: 2,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.11 : 4,456.13 = 1,970.08 : x
  2. Step 2: Convert to fraction form
    3,229.11/4,456.13 = 1,970.08/x
  3. Step 3: Cross multiply
    3,229.11x = 4,456.13 × 1,970.08
  4. Step 4: Simplify right side
    3,229.11x = 8,778,926.38
  5. Step 5: Solve for x
    x = 8,778,926.38/3,229.11
  6. Step 6: Final answer
    x = 2,718.68

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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.