Home / 3,680.11-5,519.39-1,214.36

Finding the Fourth Proportional to 3,680.11, 5,519.39 and 1,214.36

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Solution

The fourth proportional to 3,680.11, 5,519.39 and 1,214.36 is: 1,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.11 : 5,519.39 = 1,214.36 : x
  2. Step 2: Convert to fraction form
    3,680.11/5,519.39 = 1,214.36/x
  3. Step 3: Cross multiply
    3,680.11x = 5,519.39 × 1,214.36
  4. Step 4: Simplify right side
    3,680.11x = 6,702,492.77
  5. Step 5: Solve for x
    x = 6,702,492.77/3,680.11
  6. Step 6: Final answer
    x = 1,821.28

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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.