Home / 3,639.68-5,025.05-2,579.69

Finding the Fourth Proportional to 3,639.68, 5,025.05 and 2,579.69

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Solution

The fourth proportional to 3,639.68, 5,025.05 and 2,579.69 is: 3,561.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.68 : 5,025.05 = 2,579.69 : x
  2. Step 2: Convert to fraction form
    3,639.68/5,025.05 = 2,579.69/x
  3. Step 3: Cross multiply
    3,639.68x = 5,025.05 × 2,579.69
  4. Step 4: Simplify right side
    3,639.68x = 12,963,033.21
  5. Step 5: Solve for x
    x = 12,963,033.21/3,639.68
  6. Step 6: Final answer
    x = 3,561.59

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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.