Home / 6,823.88-10,235.95-2,143.80

Finding the Fourth Proportional to 6,823.88, 10,235.95 and 2,143.80

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Solution

The fourth proportional to 6,823.88, 10,235.95 and 2,143.80 is: 3,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,823.88 : 10,235.95 = 2,143.80 : x
  2. Step 2: Convert to fraction form
    6,823.88/10,235.95 = 2,143.80/x
  3. Step 3: Cross multiply
    6,823.88x = 10,235.95 × 2,143.80
  4. Step 4: Simplify right side
    6,823.88x = 21,943,843.44
  5. Step 5: Solve for x
    x = 21,943,843.44/6,823.88
  6. Step 6: Final answer
    x = 3,215.74

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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.