Home / 2,092.48-3,138.36-631.96

Finding the Fourth Proportional to 2,092.48, 3,138.36 and 631.96

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Solution

The fourth proportional to 2,092.48, 3,138.36 and 631.96 is: 947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.48 : 3,138.36 = 631.96 : x
  2. Step 2: Convert to fraction form
    2,092.48/3,138.36 = 631.96/x
  3. Step 3: Cross multiply
    2,092.48x = 3,138.36 × 631.96
  4. Step 4: Simplify right side
    2,092.48x = 1,983,317.99
  5. Step 5: Solve for x
    x = 1,983,317.99/2,092.48
  6. Step 6: Final answer
    x = 947.83

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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.