Home / 2,306.61-3,183.21-1,311.98

Finding the Fourth Proportional to 2,306.61, 3,183.21 and 1,311.98

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Solution

The fourth proportional to 2,306.61, 3,183.21 and 1,311.98 is: 1,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.61 : 3,183.21 = 1,311.98 : x
  2. Step 2: Convert to fraction form
    2,306.61/3,183.21 = 1,311.98/x
  3. Step 3: Cross multiply
    2,306.61x = 3,183.21 × 1,311.98
  4. Step 4: Simplify right side
    2,306.61x = 4,176,307.86
  5. Step 5: Solve for x
    x = 4,176,307.86/2,306.61
  6. Step 6: Final answer
    x = 1,810.58

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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.