Home / 3,122.66-4,296.56-2,863.46

Finding the Fourth Proportional to 3,122.66, 4,296.56 and 2,863.46

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Solution

The fourth proportional to 3,122.66, 4,296.56 and 2,863.46 is: 3,939.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.66 : 4,296.56 = 2,863.46 : x
  2. Step 2: Convert to fraction form
    3,122.66/4,296.56 = 2,863.46/x
  3. Step 3: Cross multiply
    3,122.66x = 4,296.56 × 2,863.46
  4. Step 4: Simplify right side
    3,122.66x = 12,303,027.70
  5. Step 5: Solve for x
    x = 12,303,027.70/3,122.66
  6. Step 6: Final answer
    x = 3,939.92

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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.