Home / 3,643.98-5,453.73-2,639.10

Finding the Fourth Proportional to 3,643.98, 5,453.73 and 2,639.10

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Solution

The fourth proportional to 3,643.98, 5,453.73 and 2,639.10 is: 3,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.98 : 5,453.73 = 2,639.10 : x
  2. Step 2: Convert to fraction form
    3,643.98/5,453.73 = 2,639.10/x
  3. Step 3: Cross multiply
    3,643.98x = 5,453.73 × 2,639.10
  4. Step 4: Simplify right side
    3,643.98x = 14,392,938.84
  5. Step 5: Solve for x
    x = 14,392,938.84/3,643.98
  6. Step 6: Final answer
    x = 3,949.79

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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.