Home / 3,144.72-4,339.76-1,747.56

Finding the Fourth Proportional to 3,144.72, 4,339.76 and 1,747.56

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Solution

The fourth proportional to 3,144.72, 4,339.76 and 1,747.56 is: 2,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.72 : 4,339.76 = 1,747.56 : x
  2. Step 2: Convert to fraction form
    3,144.72/4,339.76 = 1,747.56/x
  3. Step 3: Cross multiply
    3,144.72x = 4,339.76 × 1,747.56
  4. Step 4: Simplify right side
    3,144.72x = 7,583,990.99
  5. Step 5: Solve for x
    x = 7,583,990.99/3,144.72
  6. Step 6: Final answer
    x = 2,411.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.