Home / 1,444.28-2,164.57-621.73

Finding the Fourth Proportional to 1,444.28, 2,164.57 and 621.73

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Solution

The fourth proportional to 1,444.28, 2,164.57 and 621.73 is: 931.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.28 : 2,164.57 = 621.73 : x
  2. Step 2: Convert to fraction form
    1,444.28/2,164.57 = 621.73/x
  3. Step 3: Cross multiply
    1,444.28x = 2,164.57 × 621.73
  4. Step 4: Simplify right side
    1,444.28x = 1,345,770.58
  5. Step 5: Solve for x
    x = 1,345,770.58/1,444.28
  6. Step 6: Final answer
    x = 931.79

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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.