Home / 2,540.38-3,811.70-1,615.69

Finding the Fourth Proportional to 2,540.38, 3,811.70 and 1,615.69

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Solution

The fourth proportional to 2,540.38, 3,811.70 and 1,615.69 is: 2,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.38 : 3,811.70 = 1,615.69 : x
  2. Step 2: Convert to fraction form
    2,540.38/3,811.70 = 1,615.69/x
  3. Step 3: Cross multiply
    2,540.38x = 3,811.70 × 1,615.69
  4. Step 4: Simplify right side
    2,540.38x = 6,158,525.57
  5. Step 5: Solve for x
    x = 6,158,525.57/2,540.38
  6. Step 6: Final answer
    x = 2,424.25

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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.