Home / 1,959.22-2,701.96-1,286.42

Finding the Fourth Proportional to 1,959.22, 2,701.96 and 1,286.42

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Solution

The fourth proportional to 1,959.22, 2,701.96 and 1,286.42 is: 1,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.22 : 2,701.96 = 1,286.42 : x
  2. Step 2: Convert to fraction form
    1,959.22/2,701.96 = 1,286.42/x
  3. Step 3: Cross multiply
    1,959.22x = 2,701.96 × 1,286.42
  4. Step 4: Simplify right side
    1,959.22x = 3,475,838.66
  5. Step 5: Solve for x
    x = 3,475,838.66/1,959.22
  6. Step 6: Final answer
    x = 1,774.09

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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.