Home / 3,419.24-5,129.39-1,110.20

Finding the Fourth Proportional to 3,419.24, 5,129.39 and 1,110.20

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Solution

The fourth proportional to 3,419.24, 5,129.39 and 1,110.20 is: 1,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.24 : 5,129.39 = 1,110.20 : x
  2. Step 2: Convert to fraction form
    3,419.24/5,129.39 = 1,110.20/x
  3. Step 3: Cross multiply
    3,419.24x = 5,129.39 × 1,110.20
  4. Step 4: Simplify right side
    3,419.24x = 5,694,617.58
  5. Step 5: Solve for x
    x = 5,694,617.58/3,419.24
  6. Step 6: Final answer
    x = 1,665.47

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1.5x scale

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.