Home / 2,186.85-3,277.39-887.61

Finding the Fourth Proportional to 2,186.85, 3,277.39 and 887.61

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Solution

The fourth proportional to 2,186.85, 3,277.39 and 887.61 is: 1,330.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.85 : 3,277.39 = 887.61 : x
  2. Step 2: Convert to fraction form
    2,186.85/3,277.39 = 887.61/x
  3. Step 3: Cross multiply
    2,186.85x = 3,277.39 × 887.61
  4. Step 4: Simplify right side
    2,186.85x = 2,909,044.14
  5. Step 5: Solve for x
    x = 2,909,044.14/2,186.85
  6. Step 6: Final answer
    x = 1,330.24

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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.