Home / 5,153.17-7,729.77-2,190.85

Finding the Fourth Proportional to 5,153.17, 7,729.77 and 2,190.85

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Solution

The fourth proportional to 5,153.17, 7,729.77 and 2,190.85 is: 3,286.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.17 : 7,729.77 = 2,190.85 : x
  2. Step 2: Convert to fraction form
    5,153.17/7,729.77 = 2,190.85/x
  3. Step 3: Cross multiply
    5,153.17x = 7,729.77 × 2,190.85
  4. Step 4: Simplify right side
    5,153.17x = 16,934,727.96
  5. Step 5: Solve for x
    x = 16,934,727.96/5,153.17
  6. Step 6: Final answer
    x = 3,286.28

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Double scale
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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.