Home / 6,722.40-10,083.36-2,105.40

Finding the Fourth Proportional to 6,722.40, 10,083.36 and 2,105.40

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Solution

The fourth proportional to 6,722.40, 10,083.36 and 2,105.40 is: 3,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.40 : 10,083.36 = 2,105.40 : x
  2. Step 2: Convert to fraction form
    6,722.40/10,083.36 = 2,105.40/x
  3. Step 3: Cross multiply
    6,722.40x = 10,083.36 × 2,105.40
  4. Step 4: Simplify right side
    6,722.40x = 21,229,506.14
  5. Step 5: Solve for x
    x = 21,229,506.14/6,722.40
  6. Step 6: Final answer
    x = 3,158.02

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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.