Home / 3,811.60-5,717.40-2,766.70

Finding the Fourth Proportional to 3,811.60, 5,717.40 and 2,766.70

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Solution

The fourth proportional to 3,811.60, 5,717.40 and 2,766.70 is: 4,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.60 : 5,717.40 = 2,766.70 : x
  2. Step 2: Convert to fraction form
    3,811.60/5,717.40 = 2,766.70/x
  3. Step 3: Cross multiply
    3,811.60x = 5,717.40 × 2,766.70
  4. Step 4: Simplify right side
    3,811.60x = 15,818,330.58
  5. Step 5: Solve for x
    x = 15,818,330.58/3,811.60
  6. Step 6: Final answer
    x = 4,150.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.