Home / 5,217.62-7,200.09-2,859.71

Finding the Fourth Proportional to 5,217.62, 7,200.09 and 2,859.71

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Solution

The fourth proportional to 5,217.62, 7,200.09 and 2,859.71 is: 3,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.62 : 7,200.09 = 2,859.71 : x
  2. Step 2: Convert to fraction form
    5,217.62/7,200.09 = 2,859.71/x
  3. Step 3: Cross multiply
    5,217.62x = 7,200.09 × 2,859.71
  4. Step 4: Simplify right side
    5,217.62x = 20,590,133.37
  5. Step 5: Solve for x
    x = 20,590,133.37/5,217.62
  6. Step 6: Final answer
    x = 3,946.27

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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.