Home / 3,691.12-5,536.76-1,381.36

Finding the Fourth Proportional to 3,691.12, 5,536.76 and 1,381.36

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Solution

The fourth proportional to 3,691.12, 5,536.76 and 1,381.36 is: 2,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.12 : 5,536.76 = 1,381.36 : x
  2. Step 2: Convert to fraction form
    3,691.12/5,536.76 = 1,381.36/x
  3. Step 3: Cross multiply
    3,691.12x = 5,536.76 × 1,381.36
  4. Step 4: Simplify right side
    3,691.12x = 7,648,258.79
  5. Step 5: Solve for x
    x = 7,648,258.79/3,691.12
  6. Step 6: Final answer
    x = 2,072.07

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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.