Home / 2,945.24-4,419.70-2,642.72

Finding the Fourth Proportional to 2,945.24, 4,419.70 and 2,642.72

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Solution

The fourth proportional to 2,945.24, 4,419.70 and 2,642.72 is: 3,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.24 : 4,419.70 = 2,642.72 : x
  2. Step 2: Convert to fraction form
    2,945.24/4,419.70 = 2,642.72/x
  3. Step 3: Cross multiply
    2,945.24x = 4,419.70 × 2,642.72
  4. Step 4: Simplify right side
    2,945.24x = 11,680,029.58
  5. Step 5: Solve for x
    x = 11,680,029.58/2,945.24
  6. Step 6: Final answer
    x = 3,965.73

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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.