Home / 5,787.39-7,986.60-3,134.80

Finding the Fourth Proportional to 5,787.39, 7,986.60 and 3,134.80

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Solution

The fourth proportional to 5,787.39, 7,986.60 and 3,134.80 is: 4,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.39 : 7,986.60 = 3,134.80 : x
  2. Step 2: Convert to fraction form
    5,787.39/7,986.60 = 3,134.80/x
  3. Step 3: Cross multiply
    5,787.39x = 7,986.60 × 3,134.80
  4. Step 4: Simplify right side
    5,787.39x = 25,036,367.56
  5. Step 5: Solve for x
    x = 25,036,367.56/5,787.39
  6. Step 6: Final answer
    x = 4,326.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.