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Finding the Fourth Proportional to 4,755.40, 7,133.10 and 3,443.20

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Solution

The fourth proportional to 4,755.40, 7,133.10 and 3,443.20 is: 5,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.40 : 7,133.10 = 3,443.20 : x
  2. Step 2: Convert to fraction form
    4,755.40/7,133.10 = 3,443.20/x
  3. Step 3: Cross multiply
    4,755.40x = 7,133.10 × 3,443.20
  4. Step 4: Simplify right side
    4,755.40x = 24,560,689.92
  5. Step 5: Solve for x
    x = 24,560,689.92/4,755.40
  6. Step 6: Final answer
    x = 5,164.80

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.