Home / 3,639-5,022.39-2,223.52

Finding the Fourth Proportional to 3,639, 5,022.39 and 2,223.52

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Solution

The fourth proportional to 3,639, 5,022.39 and 2,223.52 is: 3,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639 : 5,022.39 = 2,223.52 : x
  2. Step 2: Convert to fraction form
    3,639/5,022.39 = 2,223.52/x
  3. Step 3: Cross multiply
    3,639x = 5,022.39 × 2,223.52
  4. Step 4: Simplify right side
    3,639x = 11,167,384.61
  5. Step 5: Solve for x
    x = 11,167,384.61/3,639
  6. Step 6: Final answer
    x = 3,068.81

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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.