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Finding the Fourth Proportional to 3,348.54, 4,620.89 and 1,932.21

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Solution

The fourth proportional to 3,348.54, 4,620.89 and 1,932.21 is: 2,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.54 : 4,620.89 = 1,932.21 : x
  2. Step 2: Convert to fraction form
    3,348.54/4,620.89 = 1,932.21/x
  3. Step 3: Cross multiply
    3,348.54x = 4,620.89 × 1,932.21
  4. Step 4: Simplify right side
    3,348.54x = 8,928,534.70
  5. Step 5: Solve for x
    x = 8,928,534.70/3,348.54
  6. Step 6: Final answer
    x = 2,666.40

Related Problems

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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.