Home / 5,238.77-7,229.63-2,880.97

Finding the Fourth Proportional to 5,238.77, 7,229.63 and 2,880.97

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Solution

The fourth proportional to 5,238.77, 7,229.63 and 2,880.97 is: 3,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.77 : 7,229.63 = 2,880.97 : x
  2. Step 2: Convert to fraction form
    5,238.77/7,229.63 = 2,880.97/x
  3. Step 3: Cross multiply
    5,238.77x = 7,229.63 × 2,880.97
  4. Step 4: Simplify right side
    5,238.77x = 20,828,336.27
  5. Step 5: Solve for x
    x = 20,828,336.27/5,238.77
  6. Step 6: Final answer
    x = 3,975.81

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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.