Home / 3,132.20-4,322.46-1,805.87

Finding the Fourth Proportional to 3,132.20, 4,322.46 and 1,805.87

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Solution

The fourth proportional to 3,132.20, 4,322.46 and 1,805.87 is: 2,492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.20 : 4,322.46 = 1,805.87 : x
  2. Step 2: Convert to fraction form
    3,132.20/4,322.46 = 1,805.87/x
  3. Step 3: Cross multiply
    3,132.20x = 4,322.46 × 1,805.87
  4. Step 4: Simplify right side
    3,132.20x = 7,805,800.84
  5. Step 5: Solve for x
    x = 7,805,800.84/3,132.20
  6. Step 6: Final answer
    x = 2,492.11

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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.