Home / 3,612.36-5,419.31-1,272.27

Finding the Fourth Proportional to 3,612.36, 5,419.31 and 1,272.27

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Solution

The fourth proportional to 3,612.36, 5,419.31 and 1,272.27 is: 1,908.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.36 : 5,419.31 = 1,272.27 : x
  2. Step 2: Convert to fraction form
    3,612.36/5,419.31 = 1,272.27/x
  3. Step 3: Cross multiply
    3,612.36x = 5,419.31 × 1,272.27
  4. Step 4: Simplify right side
    3,612.36x = 6,894,819.17
  5. Step 5: Solve for x
    x = 6,894,819.17/3,612.36
  6. Step 6: Final answer
    x = 1,908.67

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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.