Home / 1,295.12-1,933.28-1,198.75

Finding the Fourth Proportional to 1,295.12, 1,933.28 and 1,198.75

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Solution

The fourth proportional to 1,295.12, 1,933.28 and 1,198.75 is: 1,789.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.12 : 1,933.28 = 1,198.75 : x
  2. Step 2: Convert to fraction form
    1,295.12/1,933.28 = 1,198.75/x
  3. Step 3: Cross multiply
    1,295.12x = 1,933.28 × 1,198.75
  4. Step 4: Simplify right side
    1,295.12x = 2,317,508.57
  5. Step 5: Solve for x
    x = 2,317,508.57/1,295.12
  6. Step 6: Final answer
    x = 1,789.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.