Home / 2,481.28-3,715.35-1,440.34

Finding the Fourth Proportional to 2,481.28, 3,715.35 and 1,440.34

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Solution

The fourth proportional to 2,481.28, 3,715.35 and 1,440.34 is: 2,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.28 : 3,715.35 = 1,440.34 : x
  2. Step 2: Convert to fraction form
    2,481.28/3,715.35 = 1,440.34/x
  3. Step 3: Cross multiply
    2,481.28x = 3,715.35 × 1,440.34
  4. Step 4: Simplify right side
    2,481.28x = 5,351,367.22
  5. Step 5: Solve for x
    x = 5,351,367.22/2,481.28
  6. Step 6: Final answer
    x = 2,156.70

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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.