Home / 2,186.41-3,276.78-887.17

Finding the Fourth Proportional to 2,186.41, 3,276.78 and 887.17

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Solution

The fourth proportional to 2,186.41, 3,276.78 and 887.17 is: 1,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.41 : 3,276.78 = 887.17 : x
  2. Step 2: Convert to fraction form
    2,186.41/3,276.78 = 887.17/x
  3. Step 3: Cross multiply
    2,186.41x = 3,276.78 × 887.17
  4. Step 4: Simplify right side
    2,186.41x = 2,907,060.91
  5. Step 5: Solve for x
    x = 2,907,060.91/2,186.41
  6. Step 6: Final answer
    x = 1,329.60

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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.