Home / 3,551.76-5,326.56-1,086.12

Finding the Fourth Proportional to 3,551.76, 5,326.56 and 1,086.12

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Solution

The fourth proportional to 3,551.76, 5,326.56 and 1,086.12 is: 1,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.76 : 5,326.56 = 1,086.12 : x
  2. Step 2: Convert to fraction form
    3,551.76/5,326.56 = 1,086.12/x
  3. Step 3: Cross multiply
    3,551.76x = 5,326.56 × 1,086.12
  4. Step 4: Simplify right side
    3,551.76x = 5,785,283.35
  5. Step 5: Solve for x
    x = 5,785,283.35/3,551.76
  6. Step 6: Final answer
    x = 1,628.85

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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.