Home / 2,635.11-3,636.41-1,639.89

Finding the Fourth Proportional to 2,635.11, 3,636.41 and 1,639.89

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Solution

The fourth proportional to 2,635.11, 3,636.41 and 1,639.89 is: 2,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.11 : 3,636.41 = 1,639.89 : x
  2. Step 2: Convert to fraction form
    2,635.11/3,636.41 = 1,639.89/x
  3. Step 3: Cross multiply
    2,635.11x = 3,636.41 × 1,639.89
  4. Step 4: Simplify right side
    2,635.11x = 5,963,304.20
  5. Step 5: Solve for x
    x = 5,963,304.20/2,635.11
  6. Step 6: Final answer
    x = 2,263.02

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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.