Home / 3,402.72-5,107.68-1,672.56

Finding the Fourth Proportional to 3,402.72, 5,107.68 and 1,672.56

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Solution

The fourth proportional to 3,402.72, 5,107.68 and 1,672.56 is: 2,510.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.72 : 5,107.68 = 1,672.56 : x
  2. Step 2: Convert to fraction form
    3,402.72/5,107.68 = 1,672.56/x
  3. Step 3: Cross multiply
    3,402.72x = 5,107.68 × 1,672.56
  4. Step 4: Simplify right side
    3,402.72x = 8,542,901.26
  5. Step 5: Solve for x
    x = 8,542,901.26/3,402.72
  6. Step 6: Final answer
    x = 2,510.61

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1.5x scale

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.