Home / 2,720.40-4,089.30-2,527.80

Finding the Fourth Proportional to 2,720.40, 4,089.30 and 2,527.80

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Solution

The fourth proportional to 2,720.40, 4,089.30 and 2,527.80 is: 3,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.40 : 4,089.30 = 2,527.80 : x
  2. Step 2: Convert to fraction form
    2,720.40/4,089.30 = 2,527.80/x
  3. Step 3: Cross multiply
    2,720.40x = 4,089.30 × 2,527.80
  4. Step 4: Simplify right side
    2,720.40x = 10,336,932.54
  5. Step 5: Solve for x
    x = 10,336,932.54/2,720.40
  6. Step 6: Final answer
    x = 3,799.78

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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.