Home / 3,811.18-5,260.80-2,824.42

Finding the Fourth Proportional to 3,811.18, 5,260.80 and 2,824.42

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Solution

The fourth proportional to 3,811.18, 5,260.80 and 2,824.42 is: 3,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.18 : 5,260.80 = 2,824.42 : x
  2. Step 2: Convert to fraction form
    3,811.18/5,260.80 = 2,824.42/x
  3. Step 3: Cross multiply
    3,811.18x = 5,260.80 × 2,824.42
  4. Step 4: Simplify right side
    3,811.18x = 14,858,708.74
  5. Step 5: Solve for x
    x = 14,858,708.74/3,811.18
  6. Step 6: Final answer
    x = 3,898.72

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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.