Home / 4,816.38-6,647.22-2,720.91

Finding the Fourth Proportional to 4,816.38, 6,647.22 and 2,720.91

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Solution

The fourth proportional to 4,816.38, 6,647.22 and 2,720.91 is: 3,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,816.38 : 6,647.22 = 2,720.91 : x
  2. Step 2: Convert to fraction form
    4,816.38/6,647.22 = 2,720.91/x
  3. Step 3: Cross multiply
    4,816.38x = 6,647.22 × 2,720.91
  4. Step 4: Simplify right side
    4,816.38x = 18,086,487.37
  5. Step 5: Solve for x
    x = 18,086,487.37/4,816.38
  6. Step 6: Final answer
    x = 3,755.20

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Half scale
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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.