Home / 6,859.88-10,288.20-3,159.80

Finding the Fourth Proportional to 6,859.88, 10,288.20 and 3,159.80

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Solution

The fourth proportional to 6,859.88, 10,288.20 and 3,159.80 is: 4,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.88 : 10,288.20 = 3,159.80 : x
  2. Step 2: Convert to fraction form
    6,859.88/10,288.20 = 3,159.80/x
  3. Step 3: Cross multiply
    6,859.88x = 10,288.20 × 3,159.80
  4. Step 4: Simplify right side
    6,859.88x = 32,508,654.36
  5. Step 5: Solve for x
    x = 32,508,654.36/6,859.88
  6. Step 6: Final answer
    x = 4,738.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.