Home / 5,270.86-7,273.42-2,912.81

Finding the Fourth Proportional to 5,270.86, 7,273.42 and 2,912.81

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Solution

The fourth proportional to 5,270.86, 7,273.42 and 2,912.81 is: 4,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.86 : 7,273.42 = 2,912.81 : x
  2. Step 2: Convert to fraction form
    5,270.86/7,273.42 = 2,912.81/x
  3. Step 3: Cross multiply
    5,270.86x = 7,273.42 × 2,912.81
  4. Step 4: Simplify right side
    5,270.86x = 21,186,101.41
  5. Step 5: Solve for x
    x = 21,186,101.41/5,270.86
  6. Step 6: Final answer
    x = 4,019.48

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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.