Home / 3,409.88-4,705.68-2,065.28

Finding the Fourth Proportional to 3,409.88, 4,705.68 and 2,065.28

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Solution

The fourth proportional to 3,409.88, 4,705.68 and 2,065.28 is: 2,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.88 : 4,705.68 = 2,065.28 : x
  2. Step 2: Convert to fraction form
    3,409.88/4,705.68 = 2,065.28/x
  3. Step 3: Cross multiply
    3,409.88x = 4,705.68 × 2,065.28
  4. Step 4: Simplify right side
    3,409.88x = 9,718,546.79
  5. Step 5: Solve for x
    x = 9,718,546.79/3,409.88
  6. Step 6: Final answer
    x = 2,850.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.