Home / 6,823.80-10,236.40-2,143.02

Finding the Fourth Proportional to 6,823.80, 10,236.40 and 2,143.02

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Solution

The fourth proportional to 6,823.80, 10,236.40 and 2,143.02 is: 3,214.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,823.80 : 10,236.40 = 2,143.02 : x
  2. Step 2: Convert to fraction form
    6,823.80/10,236.40 = 2,143.02/x
  3. Step 3: Cross multiply
    6,823.80x = 10,236.40 × 2,143.02
  4. Step 4: Simplify right side
    6,823.80x = 21,936,809.93
  5. Step 5: Solve for x
    x = 21,936,809.93/6,823.80
  6. Step 6: Final answer
    x = 3,214.75

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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.