Home / 3,661.90-5,496.45-1,815.10

Finding the Fourth Proportional to 3,661.90, 5,496.45 and 1,815.10

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Solution

The fourth proportional to 3,661.90, 5,496.45 and 1,815.10 is: 2,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.90 : 5,496.45 = 1,815.10 : x
  2. Step 2: Convert to fraction form
    3,661.90/5,496.45 = 1,815.10/x
  3. Step 3: Cross multiply
    3,661.90x = 5,496.45 × 1,815.10
  4. Step 4: Simplify right side
    3,661.90x = 9,976,606.40
  5. Step 5: Solve for x
    x = 9,976,606.40/3,661.90
  6. Step 6: Final answer
    x = 2,724.43

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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.