Home / 2,639.25-3,622.05-2,390.04

Finding the Fourth Proportional to 2,639.25, 3,622.05 and 2,390.04

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Solution

The fourth proportional to 2,639.25, 3,622.05 and 2,390.04 is: 3,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.25 : 3,622.05 = 2,390.04 : x
  2. Step 2: Convert to fraction form
    2,639.25/3,622.05 = 2,390.04/x
  3. Step 3: Cross multiply
    2,639.25x = 3,622.05 × 2,390.04
  4. Step 4: Simplify right side
    2,639.25x = 8,656,844.38
  5. Step 5: Solve for x
    x = 8,656,844.38/2,639.25
  6. Step 6: Final answer
    x = 3,280.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.