Home / 3,581.78-5,372.68-1,116.68

Finding the Fourth Proportional to 3,581.78, 5,372.68 and 1,116.68

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Solution

The fourth proportional to 3,581.78, 5,372.68 and 1,116.68 is: 1,675.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.78 : 5,372.68 = 1,116.68 : x
  2. Step 2: Convert to fraction form
    3,581.78/5,372.68 = 1,116.68/x
  3. Step 3: Cross multiply
    3,581.78x = 5,372.68 × 1,116.68
  4. Step 4: Simplify right side
    3,581.78x = 5,999,564.30
  5. Step 5: Solve for x
    x = 5,999,564.30/3,581.78
  6. Step 6: Final answer
    x = 1,675.02

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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.