Home / 3,515.81-5,275.17-1,540.42

Finding the Fourth Proportional to 3,515.81, 5,275.17 and 1,540.42

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Solution

The fourth proportional to 3,515.81, 5,275.17 and 1,540.42 is: 2,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.81 : 5,275.17 = 1,540.42 : x
  2. Step 2: Convert to fraction form
    3,515.81/5,275.17 = 1,540.42/x
  3. Step 3: Cross multiply
    3,515.81x = 5,275.17 × 1,540.42
  4. Step 4: Simplify right side
    3,515.81x = 8,125,977.37
  5. Step 5: Solve for x
    x = 8,125,977.37/3,515.81
  6. Step 6: Final answer
    x = 2,311.27

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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.