Home / 3,553.30-4,903.65-1,981.30

Finding the Fourth Proportional to 3,553.30, 4,903.65 and 1,981.30

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Solution

The fourth proportional to 3,553.30, 4,903.65 and 1,981.30 is: 2,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.30 : 4,903.65 = 1,981.30 : x
  2. Step 2: Convert to fraction form
    3,553.30/4,903.65 = 1,981.30/x
  3. Step 3: Cross multiply
    3,553.30x = 4,903.65 × 1,981.30
  4. Step 4: Simplify right side
    3,553.30x = 9,715,601.75
  5. Step 5: Solve for x
    x = 9,715,601.75/3,553.30
  6. Step 6: Final answer
    x = 2,734.25

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Half scale
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Double scale
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Similar ratio
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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.