Home / 7,690.38-11,537.30-2,425.34

Finding the Fourth Proportional to 7,690.38, 11,537.30 and 2,425.34

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Solution

The fourth proportional to 7,690.38, 11,537.30 and 2,425.34 is: 3,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.38 : 11,537.30 = 2,425.34 : x
  2. Step 2: Convert to fraction form
    7,690.38/11,537.30 = 2,425.34/x
  3. Step 3: Cross multiply
    7,690.38x = 11,537.30 × 2,425.34
  4. Step 4: Simplify right side
    7,690.38x = 27,981,875.18
  5. Step 5: Solve for x
    x = 27,981,875.18/7,690.38
  6. Step 6: Final answer
    x = 3,638.56

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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.