Home / 2,001.20-2,761.83-1,117.22

Finding the Fourth Proportional to 2,001.20, 2,761.83 and 1,117.22

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Solution

The fourth proportional to 2,001.20, 2,761.83 and 1,117.22 is: 1,541.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.20 : 2,761.83 = 1,117.22 : x
  2. Step 2: Convert to fraction form
    2,001.20/2,761.83 = 1,117.22/x
  3. Step 3: Cross multiply
    2,001.20x = 2,761.83 × 1,117.22
  4. Step 4: Simplify right side
    2,001.20x = 3,085,557.90
  5. Step 5: Solve for x
    x = 3,085,557.90/2,001.20
  6. Step 6: Final answer
    x = 1,541.86

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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.