Home / 2,251.35-3,377.36-790.11

Finding the Fourth Proportional to 2,251.35, 3,377.36 and 790.11

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Solution

The fourth proportional to 2,251.35, 3,377.36 and 790.11 is: 1,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.35 : 3,377.36 = 790.11 : x
  2. Step 2: Convert to fraction form
    2,251.35/3,377.36 = 790.11/x
  3. Step 3: Cross multiply
    2,251.35x = 3,377.36 × 790.11
  4. Step 4: Simplify right side
    2,251.35x = 2,668,487.88
  5. Step 5: Solve for x
    x = 2,668,487.88/2,251.35
  6. Step 6: Final answer
    x = 1,185.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.