Home / 3,900.35-5,382.53-2,132.00

Finding the Fourth Proportional to 3,900.35, 5,382.53 and 2,132.00

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Solution

The fourth proportional to 3,900.35, 5,382.53 and 2,132.00 is: 2,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.35 : 5,382.53 = 2,132.00 : x
  2. Step 2: Convert to fraction form
    3,900.35/5,382.53 = 2,132.00/x
  3. Step 3: Cross multiply
    3,900.35x = 5,382.53 × 2,132.00
  4. Step 4: Simplify right side
    3,900.35x = 11,475,516.39
  5. Step 5: Solve for x
    x = 11,475,516.39/3,900.35
  6. Step 6: Final answer
    x = 2,942.18

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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.