Home / 3,132.11-4,322.30-1,805.81

Finding the Fourth Proportional to 3,132.11, 4,322.30 and 1,805.81

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Solution

The fourth proportional to 3,132.11, 4,322.30 and 1,805.81 is: 2,492.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.11 : 4,322.30 = 1,805.81 : x
  2. Step 2: Convert to fraction form
    3,132.11/4,322.30 = 1,805.81/x
  3. Step 3: Cross multiply
    3,132.11x = 4,322.30 × 1,805.81
  4. Step 4: Simplify right side
    3,132.11x = 7,805,252.56
  5. Step 5: Solve for x
    x = 7,805,252.56/3,132.11
  6. Step 6: Final answer
    x = 2,492.01

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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.