Home / 6,822.90-10,234.35-2,142.99

Finding the Fourth Proportional to 6,822.90, 10,234.35 and 2,142.99

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Solution

The fourth proportional to 6,822.90, 10,234.35 and 2,142.99 is: 3,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,822.90 : 10,234.35 = 2,142.99 : x
  2. Step 2: Convert to fraction form
    6,822.90/10,234.35 = 2,142.99/x
  3. Step 3: Cross multiply
    6,822.90x = 10,234.35 × 2,142.99
  4. Step 4: Simplify right side
    6,822.90x = 21,932,109.71
  5. Step 5: Solve for x
    x = 21,932,109.71/6,822.90
  6. Step 6: Final answer
    x = 3,214.49

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Similar ratio
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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.