Home / 5,238.47-7,229.05-2,880.56

Finding the Fourth Proportional to 5,238.47, 7,229.05 and 2,880.56

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Solution

The fourth proportional to 5,238.47, 7,229.05 and 2,880.56 is: 3,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.47 : 7,229.05 = 2,880.56 : x
  2. Step 2: Convert to fraction form
    5,238.47/7,229.05 = 2,880.56/x
  3. Step 3: Cross multiply
    5,238.47x = 7,229.05 × 2,880.56
  4. Step 4: Simplify right side
    5,238.47x = 20,823,723.14
  5. Step 5: Solve for x
    x = 20,823,723.14/5,238.47
  6. Step 6: Final answer
    x = 3,975.15

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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.