Home / 3,132.35-4,323.42-1,806.85

Finding the Fourth Proportional to 3,132.35, 4,323.42 and 1,806.85

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Solution

The fourth proportional to 3,132.35, 4,323.42 and 1,806.85 is: 2,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.35 : 4,323.42 = 1,806.85 : x
  2. Step 2: Convert to fraction form
    3,132.35/4,323.42 = 1,806.85/x
  3. Step 3: Cross multiply
    3,132.35x = 4,323.42 × 1,806.85
  4. Step 4: Simplify right side
    3,132.35x = 7,811,740.78
  5. Step 5: Solve for x
    x = 7,811,740.78/3,132.35
  6. Step 6: Final answer
    x = 2,493.90

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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.