Home / 3,132.52-4,322.78-1,806.96

Finding the Fourth Proportional to 3,132.52, 4,322.78 and 1,806.96

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Solution

The fourth proportional to 3,132.52, 4,322.78 and 1,806.96 is: 2,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.52 : 4,322.78 = 1,806.96 : x
  2. Step 2: Convert to fraction form
    3,132.52/4,322.78 = 1,806.96/x
  3. Step 3: Cross multiply
    3,132.52x = 4,322.78 × 1,806.96
  4. Step 4: Simplify right side
    3,132.52x = 7,811,090.55
  5. Step 5: Solve for x
    x = 7,811,090.55/3,132.52
  6. Step 6: Final answer
    x = 2,493.55

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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.