Home / 2,286.80-3,428.70-899.30

Finding the Fourth Proportional to 2,286.80, 3,428.70 and 899.30

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Solution

The fourth proportional to 2,286.80, 3,428.70 and 899.30 is: 1,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.80 : 3,428.70 = 899.30 : x
  2. Step 2: Convert to fraction form
    2,286.80/3,428.70 = 899.30/x
  3. Step 3: Cross multiply
    2,286.80x = 3,428.70 × 899.30
  4. Step 4: Simplify right side
    2,286.80x = 3,083,429.91
  5. Step 5: Solve for x
    x = 3,083,429.91/2,286.80
  6. Step 6: Final answer
    x = 1,348.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.