Home / 5,291.20-7,936.57-2,170.18

Finding the Fourth Proportional to 5,291.20, 7,936.57 and 2,170.18

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Solution

The fourth proportional to 5,291.20, 7,936.57 and 2,170.18 is: 3,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.20 : 7,936.57 = 2,170.18 : x
  2. Step 2: Convert to fraction form
    5,291.20/7,936.57 = 2,170.18/x
  3. Step 3: Cross multiply
    5,291.20x = 7,936.57 × 2,170.18
  4. Step 4: Simplify right side
    5,291.20x = 17,223,785.48
  5. Step 5: Solve for x
    x = 17,223,785.48/5,291.20
  6. Step 6: Final answer
    x = 3,255.18

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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.