Home / 1,343.52-2,015.25-369.60

Finding the Fourth Proportional to 1,343.52, 2,015.25 and 369.60

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Solution

The fourth proportional to 1,343.52, 2,015.25 and 369.60 is: 554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.52 : 2,015.25 = 369.60 : x
  2. Step 2: Convert to fraction form
    1,343.52/2,015.25 = 369.60/x
  3. Step 3: Cross multiply
    1,343.52x = 2,015.25 × 369.60
  4. Step 4: Simplify right side
    1,343.52x = 744,836.40
  5. Step 5: Solve for x
    x = 744,836.40/1,343.52
  6. Step 6: Final answer
    x = 554.39

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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.