Home / 6,818.80-10,229.22-2,139.23

Finding the Fourth Proportional to 6,818.80, 10,229.22 and 2,139.23

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Solution

The fourth proportional to 6,818.80, 10,229.22 and 2,139.23 is: 3,209.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.80 : 10,229.22 = 2,139.23 : x
  2. Step 2: Convert to fraction form
    6,818.80/10,229.22 = 2,139.23/x
  3. Step 3: Cross multiply
    6,818.80x = 10,229.22 × 2,139.23
  4. Step 4: Simplify right side
    6,818.80x = 21,882,603.15
  5. Step 5: Solve for x
    x = 21,882,603.15/6,818.80
  6. Step 6: Final answer
    x = 3,209.16

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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.