Home / 2,310.85-3,188.98-1,262.91

Finding the Fourth Proportional to 2,310.85, 3,188.98 and 1,262.91

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Solution

The fourth proportional to 2,310.85, 3,188.98 and 1,262.91 is: 1,742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.85 : 3,188.98 = 1,262.91 : x
  2. Step 2: Convert to fraction form
    2,310.85/3,188.98 = 1,262.91/x
  3. Step 3: Cross multiply
    2,310.85x = 3,188.98 × 1,262.91
  4. Step 4: Simplify right side
    2,310.85x = 4,027,408.27
  5. Step 5: Solve for x
    x = 4,027,408.27/2,310.85
  6. Step 6: Final answer
    x = 1,742.82

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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.