Home / 3,811.35-5,260.17-2,132.85

Finding the Fourth Proportional to 3,811.35, 5,260.17 and 2,132.85

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Solution

The fourth proportional to 3,811.35, 5,260.17 and 2,132.85 is: 2,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.35 : 5,260.17 = 2,132.85 : x
  2. Step 2: Convert to fraction form
    3,811.35/5,260.17 = 2,132.85/x
  3. Step 3: Cross multiply
    3,811.35x = 5,260.17 × 2,132.85
  4. Step 4: Simplify right side
    3,811.35x = 11,219,153.58
  5. Step 5: Solve for x
    x = 11,219,153.58/3,811.35
  6. Step 6: Final answer
    x = 2,943.62

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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.