Home / 2,205.17-3,307.37-724.37

Finding the Fourth Proportional to 2,205.17, 3,307.37 and 724.37

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Solution

The fourth proportional to 2,205.17, 3,307.37 and 724.37 is: 1,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.17 : 3,307.37 = 724.37 : x
  2. Step 2: Convert to fraction form
    2,205.17/3,307.37 = 724.37/x
  3. Step 3: Cross multiply
    2,205.17x = 3,307.37 × 724.37
  4. Step 4: Simplify right side
    2,205.17x = 2,395,739.45
  5. Step 5: Solve for x
    x = 2,395,739.45/2,205.17
  6. Step 6: Final answer
    x = 1,086.42

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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.