Home / 5,270.76-7,273.74-2,912.91

Finding the Fourth Proportional to 5,270.76, 7,273.74 and 2,912.91

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Solution

The fourth proportional to 5,270.76, 7,273.74 and 2,912.91 is: 4,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.76 : 7,273.74 = 2,912.91 : x
  2. Step 2: Convert to fraction form
    5,270.76/7,273.74 = 2,912.91/x
  3. Step 3: Cross multiply
    5,270.76x = 7,273.74 × 2,912.91
  4. Step 4: Simplify right side
    5,270.76x = 21,187,749.98
  5. Step 5: Solve for x
    x = 21,187,749.98/5,270.76
  6. Step 6: Final answer
    x = 4,019.87

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1.5x scale

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.