Home / 3,147.86-4,722.17-1,758.21

Finding the Fourth Proportional to 3,147.86, 4,722.17 and 1,758.21

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Solution

The fourth proportional to 3,147.86, 4,722.17 and 1,758.21 is: 2,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.86 : 4,722.17 = 1,758.21 : x
  2. Step 2: Convert to fraction form
    3,147.86/4,722.17 = 1,758.21/x
  3. Step 3: Cross multiply
    3,147.86x = 4,722.17 × 1,758.21
  4. Step 4: Simplify right side
    3,147.86x = 8,302,540.02
  5. Step 5: Solve for x
    x = 8,302,540.02/3,147.86
  6. Step 6: Final answer
    x = 2,637.52

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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.