Home / 6,889.88-10,334.61-2,209.70

Finding the Fourth Proportional to 6,889.88, 10,334.61 and 2,209.70

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Solution

The fourth proportional to 6,889.88, 10,334.61 and 2,209.70 is: 3,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.88 : 10,334.61 = 2,209.70 : x
  2. Step 2: Convert to fraction form
    6,889.88/10,334.61 = 2,209.70/x
  3. Step 3: Cross multiply
    6,889.88x = 10,334.61 × 2,209.70
  4. Step 4: Simplify right side
    6,889.88x = 22,836,336.04
  5. Step 5: Solve for x
    x = 22,836,336.04/6,889.88
  6. Step 6: Final answer
    x = 3,314.48

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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.