Home / 5,270.85-7,271.19-3,144.98

Finding the Fourth Proportional to 5,270.85, 7,271.19 and 3,144.98

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Solution

The fourth proportional to 5,270.85, 7,271.19 and 3,144.98 is: 4,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.85 : 7,271.19 = 3,144.98 : x
  2. Step 2: Convert to fraction form
    5,270.85/7,271.19 = 3,144.98/x
  3. Step 3: Cross multiply
    5,270.85x = 7,271.19 × 3,144.98
  4. Step 4: Simplify right side
    5,270.85x = 22,867,733.25
  5. Step 5: Solve for x
    x = 22,867,733.25/5,270.85
  6. Step 6: Final answer
    x = 4,338.53

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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.