Home / 3,132.51-4,322.79-1,806.96

Finding the Fourth Proportional to 3,132.51, 4,322.79 and 1,806.96

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Solution

The fourth proportional to 3,132.51, 4,322.79 and 1,806.96 is: 2,493.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.51 : 4,322.79 = 1,806.96 : x
  2. Step 2: Convert to fraction form
    3,132.51/4,322.79 = 1,806.96/x
  3. Step 3: Cross multiply
    3,132.51x = 4,322.79 × 1,806.96
  4. Step 4: Simplify right side
    3,132.51x = 7,811,108.62
  5. Step 5: Solve for x
    x = 7,811,108.62/3,132.51
  6. Step 6: Final answer
    x = 2,493.56

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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.