Home / 2,306.88-3,183.57-1,312.20

Finding the Fourth Proportional to 2,306.88, 3,183.57 and 1,312.20

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Solution

The fourth proportional to 2,306.88, 3,183.57 and 1,312.20 is: 1,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.88 : 3,183.57 = 1,312.20 : x
  2. Step 2: Convert to fraction form
    2,306.88/3,183.57 = 1,312.20/x
  3. Step 3: Cross multiply
    2,306.88x = 3,183.57 × 1,312.20
  4. Step 4: Simplify right side
    2,306.88x = 4,177,480.55
  5. Step 5: Solve for x
    x = 4,177,480.55/2,306.88
  6. Step 6: Final answer
    x = 1,810.88

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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.