Home / 5,135.28-7,087.95-3,039

Finding the Fourth Proportional to 5,135.28, 7,087.95 and 3,039

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Solution

The fourth proportional to 5,135.28, 7,087.95 and 3,039 is: 4,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.28 : 7,087.95 = 3,039 : x
  2. Step 2: Convert to fraction form
    5,135.28/7,087.95 = 3,039/x
  3. Step 3: Cross multiply
    5,135.28x = 7,087.95 × 3,039
  4. Step 4: Simplify right side
    5,135.28x = 21,540,280.05
  5. Step 5: Solve for x
    x = 21,540,280.05/5,135.28
  6. Step 6: Final answer
    x = 4,194.57

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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.