Home / 5,238.84-7,229.76-2,881.14

Finding the Fourth Proportional to 5,238.84, 7,229.76 and 2,881.14

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Solution

The fourth proportional to 5,238.84, 7,229.76 and 2,881.14 is: 3,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.84 : 7,229.76 = 2,881.14 : x
  2. Step 2: Convert to fraction form
    5,238.84/7,229.76 = 2,881.14/x
  3. Step 3: Cross multiply
    5,238.84x = 7,229.76 × 2,881.14
  4. Step 4: Simplify right side
    5,238.84x = 20,829,912.81
  5. Step 5: Solve for x
    x = 20,829,912.81/5,238.84
  6. Step 6: Final answer
    x = 3,976.05

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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.