Home / 3,993.45-5,510.97-2,315.18

Finding the Fourth Proportional to 3,993.45, 5,510.97 and 2,315.18

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Solution

The fourth proportional to 3,993.45, 5,510.97 and 2,315.18 is: 3,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.45 : 5,510.97 = 2,315.18 : x
  2. Step 2: Convert to fraction form
    3,993.45/5,510.97 = 2,315.18/x
  3. Step 3: Cross multiply
    3,993.45x = 5,510.97 × 2,315.18
  4. Step 4: Simplify right side
    3,993.45x = 12,758,859.97
  5. Step 5: Solve for x
    x = 12,758,859.97/3,993.45
  6. Step 6: Final answer
    x = 3,194.95

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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.