Home / 2,306.35-3,182.97-1,311.76

Finding the Fourth Proportional to 2,306.35, 3,182.97 and 1,311.76

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Solution

The fourth proportional to 2,306.35, 3,182.97 and 1,311.76 is: 1,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.35 : 3,182.97 = 1,311.76 : x
  2. Step 2: Convert to fraction form
    2,306.35/3,182.97 = 1,311.76/x
  3. Step 3: Cross multiply
    2,306.35x = 3,182.97 × 1,311.76
  4. Step 4: Simplify right side
    2,306.35x = 4,175,292.73
  5. Step 5: Solve for x
    x = 4,175,292.73/2,306.35
  6. Step 6: Final answer
    x = 1,810.35

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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.