Home / 2,559.71-3,847.15-2,123.79

Finding the Fourth Proportional to 2,559.71, 3,847.15 and 2,123.79

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Solution

The fourth proportional to 2,559.71, 3,847.15 and 2,123.79 is: 3,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.71 : 3,847.15 = 2,123.79 : x
  2. Step 2: Convert to fraction form
    2,559.71/3,847.15 = 2,123.79/x
  3. Step 3: Cross multiply
    2,559.71x = 3,847.15 × 2,123.79
  4. Step 4: Simplify right side
    2,559.71x = 8,170,528.08
  5. Step 5: Solve for x
    x = 8,170,528.08/2,559.71
  6. Step 6: Final answer
    x = 3,191.97

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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.