Home / 6,639.81-9,961.32-2,257.29

Finding the Fourth Proportional to 6,639.81, 9,961.32 and 2,257.29

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Solution

The fourth proportional to 6,639.81, 9,961.32 and 2,257.29 is: 3,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.81 : 9,961.32 = 2,257.29 : x
  2. Step 2: Convert to fraction form
    6,639.81/9,961.32 = 2,257.29/x
  3. Step 3: Cross multiply
    6,639.81x = 9,961.32 × 2,257.29
  4. Step 4: Simplify right side
    6,639.81x = 22,485,588.02
  5. Step 5: Solve for x
    x = 22,485,588.02/6,639.81
  6. Step 6: Final answer
    x = 3,386.48

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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.