Home / 3,680.90-5,522.03-1,215.82

Finding the Fourth Proportional to 3,680.90, 5,522.03 and 1,215.82

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Solution

The fourth proportional to 3,680.90, 5,522.03 and 1,215.82 is: 1,823.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.90 : 5,522.03 = 1,215.82 : x
  2. Step 2: Convert to fraction form
    3,680.90/5,522.03 = 1,215.82/x
  3. Step 3: Cross multiply
    3,680.90x = 5,522.03 × 1,215.82
  4. Step 4: Simplify right side
    3,680.90x = 6,713,794.51
  5. Step 5: Solve for x
    x = 6,713,794.51/3,680.90
  6. Step 6: Final answer
    x = 1,823.95

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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.