Home / 5,180.72-7,102.91-5,087.39

Finding the Fourth Proportional to 5,180.72, 7,102.91 and 5,087.39

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Solution

The fourth proportional to 5,180.72, 7,102.91 and 5,087.39 is: 6,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.72 : 7,102.91 = 5,087.39 : x
  2. Step 2: Convert to fraction form
    5,180.72/7,102.91 = 5,087.39/x
  3. Step 3: Cross multiply
    5,180.72x = 7,102.91 × 5,087.39
  4. Step 4: Simplify right side
    5,180.72x = 36,135,212.35
  5. Step 5: Solve for x
    x = 36,135,212.35/5,180.72
  6. Step 6: Final answer
    x = 6,974.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.