Home / 2,353.44-3,528.63-1,121.43

Finding the Fourth Proportional to 2,353.44, 3,528.63 and 1,121.43

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Solution

The fourth proportional to 2,353.44, 3,528.63 and 1,121.43 is: 1,681.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.44 : 3,528.63 = 1,121.43 : x
  2. Step 2: Convert to fraction form
    2,353.44/3,528.63 = 1,121.43/x
  3. Step 3: Cross multiply
    2,353.44x = 3,528.63 × 1,121.43
  4. Step 4: Simplify right side
    2,353.44x = 3,957,111.54
  5. Step 5: Solve for x
    x = 3,957,111.54/2,353.44
  6. Step 6: Final answer
    x = 1,681.42

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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.