Home / 3,581.88-5,370.64-1,240.68

Finding the Fourth Proportional to 3,581.88, 5,370.64 and 1,240.68

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Solution

The fourth proportional to 3,581.88, 5,370.64 and 1,240.68 is: 1,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.88 : 5,370.64 = 1,240.68 : x
  2. Step 2: Convert to fraction form
    3,581.88/5,370.64 = 1,240.68/x
  3. Step 3: Cross multiply
    3,581.88x = 5,370.64 × 1,240.68
  4. Step 4: Simplify right side
    3,581.88x = 6,663,245.64
  5. Step 5: Solve for x
    x = 6,663,245.64/3,581.88
  6. Step 6: Final answer
    x = 1,860.26

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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.