Home / 2,186.97-3,278.76-1,491.93

Finding the Fourth Proportional to 2,186.97, 3,278.76 and 1,491.93

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Solution

The fourth proportional to 2,186.97, 3,278.76 and 1,491.93 is: 2,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.97 : 3,278.76 = 1,491.93 : x
  2. Step 2: Convert to fraction form
    2,186.97/3,278.76 = 1,491.93/x
  3. Step 3: Cross multiply
    2,186.97x = 3,278.76 × 1,491.93
  4. Step 4: Simplify right side
    2,186.97x = 4,891,680.41
  5. Step 5: Solve for x
    x = 4,891,680.41/2,186.97
  6. Step 6: Final answer
    x = 2,236.74

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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.