Home / 3,612.36-5,418.72-1,147.37

Finding the Fourth Proportional to 3,612.36, 5,418.72 and 1,147.37

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Solution

The fourth proportional to 3,612.36, 5,418.72 and 1,147.37 is: 1,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.36 : 5,418.72 = 1,147.37 : x
  2. Step 2: Convert to fraction form
    3,612.36/5,418.72 = 1,147.37/x
  3. Step 3: Cross multiply
    3,612.36x = 5,418.72 × 1,147.37
  4. Step 4: Simplify right side
    3,612.36x = 6,217,276.77
  5. Step 5: Solve for x
    x = 6,217,276.77/3,612.36
  6. Step 6: Final answer
    x = 1,721.11

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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.