Home / 5,216.91-7,199.79-2,859.50

Finding the Fourth Proportional to 5,216.91, 7,199.79 and 2,859.50

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Solution

The fourth proportional to 5,216.91, 7,199.79 and 2,859.50 is: 3,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.91 : 7,199.79 = 2,859.50 : x
  2. Step 2: Convert to fraction form
    5,216.91/7,199.79 = 2,859.50/x
  3. Step 3: Cross multiply
    5,216.91x = 7,199.79 × 2,859.50
  4. Step 4: Simplify right side
    5,216.91x = 20,587,806.78
  5. Step 5: Solve for x
    x = 20,587,806.78/5,216.91
  6. Step 6: Final answer
    x = 3,946.36

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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.