Home / 1,959.13-2,703.20-1,120.11

Finding the Fourth Proportional to 1,959.13, 2,703.20 and 1,120.11

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Solution

The fourth proportional to 1,959.13, 2,703.20 and 1,120.11 is: 1,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.13 : 2,703.20 = 1,120.11 : x
  2. Step 2: Convert to fraction form
    1,959.13/2,703.20 = 1,120.11/x
  3. Step 3: Cross multiply
    1,959.13x = 2,703.20 × 1,120.11
  4. Step 4: Simplify right side
    1,959.13x = 3,027,865.61
  5. Step 5: Solve for x
    x = 3,027,865.61/1,959.13
  6. Step 6: Final answer
    x = 1,545.51

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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.