Home / 2,527.30-3,788.63-2,139.80

Finding the Fourth Proportional to 2,527.30, 3,788.63 and 2,139.80

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Solution

The fourth proportional to 2,527.30, 3,788.63 and 2,139.80 is: 3,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,527.30 : 3,788.63 = 2,139.80 : x
  2. Step 2: Convert to fraction form
    2,527.30/3,788.63 = 2,139.80/x
  3. Step 3: Cross multiply
    2,527.30x = 3,788.63 × 2,139.80
  4. Step 4: Simplify right side
    2,527.30x = 8,106,891.53
  5. Step 5: Solve for x
    x = 8,106,891.53/2,527.30
  6. Step 6: Final answer
    x = 3,207.73

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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.