Home / 2,311.52-3,190.11-1,263.74

Finding the Fourth Proportional to 2,311.52, 3,190.11 and 1,263.74

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Solution

The fourth proportional to 2,311.52, 3,190.11 and 1,263.74 is: 1,744.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.52 : 3,190.11 = 1,263.74 : x
  2. Step 2: Convert to fraction form
    2,311.52/3,190.11 = 1,263.74/x
  3. Step 3: Cross multiply
    2,311.52x = 3,190.11 × 1,263.74
  4. Step 4: Simplify right side
    2,311.52x = 4,031,469.61
  5. Step 5: Solve for x
    x = 4,031,469.61/2,311.52
  6. Step 6: Final answer
    x = 1,744.08

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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.