Home / 1,353.03-2,028.85-621.97

Finding the Fourth Proportional to 1,353.03, 2,028.85 and 621.97

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Solution

The fourth proportional to 1,353.03, 2,028.85 and 621.97 is: 932.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.03 : 2,028.85 = 621.97 : x
  2. Step 2: Convert to fraction form
    1,353.03/2,028.85 = 621.97/x
  3. Step 3: Cross multiply
    1,353.03x = 2,028.85 × 621.97
  4. Step 4: Simplify right side
    1,353.03x = 1,261,883.83
  5. Step 5: Solve for x
    x = 1,261,883.83/1,353.03
  6. Step 6: Final answer
    x = 932.64

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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.