Home / 1,637.82-2,438.91-1,553.85

Finding the Fourth Proportional to 1,637.82, 2,438.91 and 1,553.85

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Solution

The fourth proportional to 1,637.82, 2,438.91 and 1,553.85 is: 2,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.82 : 2,438.91 = 1,553.85 : x
  2. Step 2: Convert to fraction form
    1,637.82/2,438.91 = 1,553.85/x
  3. Step 3: Cross multiply
    1,637.82x = 2,438.91 × 1,553.85
  4. Step 4: Simplify right side
    1,637.82x = 3,789,700.30
  5. Step 5: Solve for x
    x = 3,789,700.30/1,637.82
  6. Step 6: Final answer
    x = 2,313.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.