Home / 6,822.90-10,232.55-2,142.90

Finding the Fourth Proportional to 6,822.90, 10,232.55 and 2,142.90

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Solution

The fourth proportional to 6,822.90, 10,232.55 and 2,142.90 is: 3,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,822.90 : 10,232.55 = 2,142.90 : x
  2. Step 2: Convert to fraction form
    6,822.90/10,232.55 = 2,142.90/x
  3. Step 3: Cross multiply
    6,822.90x = 10,232.55 × 2,142.90
  4. Step 4: Simplify right side
    6,822.90x = 21,927,331.40
  5. Step 5: Solve for x
    x = 21,927,331.40/6,822.90
  6. Step 6: Final answer
    x = 3,213.78

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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.