Home / 2,959.20-4,086.84-2,249.64

Finding the Fourth Proportional to 2,959.20, 4,086.84 and 2,249.64

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Solution

The fourth proportional to 2,959.20, 4,086.84 and 2,249.64 is: 3,106.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.20 : 4,086.84 = 2,249.64 : x
  2. Step 2: Convert to fraction form
    2,959.20/4,086.84 = 2,249.64/x
  3. Step 3: Cross multiply
    2,959.20x = 4,086.84 × 2,249.64
  4. Step 4: Simplify right side
    2,959.20x = 9,193,918.74
  5. Step 5: Solve for x
    x = 9,193,918.74/2,959.20
  6. Step 6: Final answer
    x = 3,106.89

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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.