Home / 6,815.21-10,220.58-2,197.13

Finding the Fourth Proportional to 6,815.21, 10,220.58 and 2,197.13

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Solution

The fourth proportional to 6,815.21, 10,220.58 and 2,197.13 is: 3,294.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.21 : 10,220.58 = 2,197.13 : x
  2. Step 2: Convert to fraction form
    6,815.21/10,220.58 = 2,197.13/x
  3. Step 3: Cross multiply
    6,815.21x = 10,220.58 × 2,197.13
  4. Step 4: Simplify right side
    6,815.21x = 22,455,891.83
  5. Step 5: Solve for x
    x = 22,455,891.83/6,815.21
  6. Step 6: Final answer
    x = 3,294.97

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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.