Home / 3,612.09-5,418.90-1,146.59

Finding the Fourth Proportional to 3,612.09, 5,418.90 and 1,146.59

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Solution

The fourth proportional to 3,612.09, 5,418.90 and 1,146.59 is: 1,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.09 : 5,418.90 = 1,146.59 : x
  2. Step 2: Convert to fraction form
    3,612.09/5,418.90 = 1,146.59/x
  3. Step 3: Cross multiply
    3,612.09x = 5,418.90 × 1,146.59
  4. Step 4: Simplify right side
    3,612.09x = 6,213,229.46
  5. Step 5: Solve for x
    x = 6,213,229.46/3,612.09
  6. Step 6: Final answer
    x = 1,720.12

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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.