Home / 3,720.96-5,581.14-1,255.74

Finding the Fourth Proportional to 3,720.96, 5,581.14 and 1,255.74

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Solution

The fourth proportional to 3,720.96, 5,581.14 and 1,255.74 is: 1,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.96 : 5,581.14 = 1,255.74 : x
  2. Step 2: Convert to fraction form
    3,720.96/5,581.14 = 1,255.74/x
  3. Step 3: Cross multiply
    3,720.96x = 5,581.14 × 1,255.74
  4. Step 4: Simplify right side
    3,720.96x = 7,008,460.74
  5. Step 5: Solve for x
    x = 7,008,460.74/3,720.96
  6. Step 6: Final answer
    x = 1,883.51

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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.