Home / 3,927.18-5,891.58-1,329.78

Finding the Fourth Proportional to 3,927.18, 5,891.58 and 1,329.78

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Solution

The fourth proportional to 3,927.18, 5,891.58 and 1,329.78 is: 1,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.18 : 5,891.58 = 1,329.78 : x
  2. Step 2: Convert to fraction form
    3,927.18/5,891.58 = 1,329.78/x
  3. Step 3: Cross multiply
    3,927.18x = 5,891.58 × 1,329.78
  4. Step 4: Simplify right side
    3,927.18x = 7,834,505.25
  5. Step 5: Solve for x
    x = 7,834,505.25/3,927.18
  6. Step 6: Final answer
    x = 1,994.94

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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.