Home / 1,353.24-2,027.48-621.28

Finding the Fourth Proportional to 1,353.24, 2,027.48 and 621.28

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Solution

The fourth proportional to 1,353.24, 2,027.48 and 621.28 is: 930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.24 : 2,027.48 = 621.28 : x
  2. Step 2: Convert to fraction form
    1,353.24/2,027.48 = 621.28/x
  3. Step 3: Cross multiply
    1,353.24x = 2,027.48 × 621.28
  4. Step 4: Simplify right side
    1,353.24x = 1,259,632.77
  5. Step 5: Solve for x
    x = 1,259,632.77/1,353.24
  6. Step 6: Final answer
    x = 930.83

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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.