Home / 2,230.35-3,077.55-1,286.07

Finding the Fourth Proportional to 2,230.35, 3,077.55 and 1,286.07

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Solution

The fourth proportional to 2,230.35, 3,077.55 and 1,286.07 is: 1,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.35 : 3,077.55 = 1,286.07 : x
  2. Step 2: Convert to fraction form
    2,230.35/3,077.55 = 1,286.07/x
  3. Step 3: Cross multiply
    2,230.35x = 3,077.55 × 1,286.07
  4. Step 4: Simplify right side
    2,230.35x = 3,957,944.73
  5. Step 5: Solve for x
    x = 3,957,944.73/2,230.35
  6. Step 6: Final answer
    x = 1,774.58

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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.