Home / 2,150.39-3,225.57-1,419.79

Finding the Fourth Proportional to 2,150.39, 3,225.57 and 1,419.79

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Solution

The fourth proportional to 2,150.39, 3,225.57 and 1,419.79 is: 2,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.39 : 3,225.57 = 1,419.79 : x
  2. Step 2: Convert to fraction form
    2,150.39/3,225.57 = 1,419.79/x
  3. Step 3: Cross multiply
    2,150.39x = 3,225.57 × 1,419.79
  4. Step 4: Simplify right side
    2,150.39x = 4,579,623.97
  5. Step 5: Solve for x
    x = 4,579,623.97/2,150.39
  6. Step 6: Final answer
    x = 2,129.68

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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.