Home / 5,639.97-7,783.25-3,087.95

Finding the Fourth Proportional to 5,639.97, 7,783.25 and 3,087.95

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Solution

The fourth proportional to 5,639.97, 7,783.25 and 3,087.95 is: 4,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.97 : 7,783.25 = 3,087.95 : x
  2. Step 2: Convert to fraction form
    5,639.97/7,783.25 = 3,087.95/x
  3. Step 3: Cross multiply
    5,639.97x = 7,783.25 × 3,087.95
  4. Step 4: Simplify right side
    5,639.97x = 24,034,305.60
  5. Step 5: Solve for x
    x = 24,034,305.60/5,639.97
  6. Step 6: Final answer
    x = 4,261.42

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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.