Home / 2,126.82-3,190.40-587.82

Finding the Fourth Proportional to 2,126.82, 3,190.40 and 587.82

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Solution

The fourth proportional to 2,126.82, 3,190.40 and 587.82 is: 881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.82 : 3,190.40 = 587.82 : x
  2. Step 2: Convert to fraction form
    2,126.82/3,190.40 = 587.82/x
  3. Step 3: Cross multiply
    2,126.82x = 3,190.40 × 587.82
  4. Step 4: Simplify right side
    2,126.82x = 1,875,377.99
  5. Step 5: Solve for x
    x = 1,875,377.99/2,126.82
  6. Step 6: Final answer
    x = 881.78

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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.