Home / 2,624.19-3,621.07-1,489.78

Finding the Fourth Proportional to 2,624.19, 3,621.07 and 1,489.78

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Solution

The fourth proportional to 2,624.19, 3,621.07 and 1,489.78 is: 2,055.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.19 : 3,621.07 = 1,489.78 : x
  2. Step 2: Convert to fraction form
    2,624.19/3,621.07 = 1,489.78/x
  3. Step 3: Cross multiply
    2,624.19x = 3,621.07 × 1,489.78
  4. Step 4: Simplify right side
    2,624.19x = 5,394,593.94
  5. Step 5: Solve for x
    x = 5,394,593.94/2,624.19
  6. Step 6: Final answer
    x = 2,055.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.