Home / 3,553.68-4,904.10-1,981.80

Finding the Fourth Proportional to 3,553.68, 4,904.10 and 1,981.80

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Solution

The fourth proportional to 3,553.68, 4,904.10 and 1,981.80 is: 2,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.68 : 4,904.10 = 1,981.80 : x
  2. Step 2: Convert to fraction form
    3,553.68/4,904.10 = 1,981.80/x
  3. Step 3: Cross multiply
    3,553.68x = 4,904.10 × 1,981.80
  4. Step 4: Simplify right side
    3,553.68x = 9,718,945.38
  5. Step 5: Solve for x
    x = 9,718,945.38/3,553.68
  6. Step 6: Final answer
    x = 2,734.90

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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.