Home / 3,112.44-4,295.70-2,117.04

Finding the Fourth Proportional to 3,112.44, 4,295.70 and 2,117.04

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Solution

The fourth proportional to 3,112.44, 4,295.70 and 2,117.04 is: 2,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.44 : 4,295.70 = 2,117.04 : x
  2. Step 2: Convert to fraction form
    3,112.44/4,295.70 = 2,117.04/x
  3. Step 3: Cross multiply
    3,112.44x = 4,295.70 × 2,117.04
  4. Step 4: Simplify right side
    3,112.44x = 9,094,168.73
  5. Step 5: Solve for x
    x = 9,094,168.73/3,112.44
  6. Step 6: Final answer
    x = 2,921.88

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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.