Home / 5,249.63-7,244.49-2,891.72

Finding the Fourth Proportional to 5,249.63, 7,244.49 and 2,891.72

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Solution

The fourth proportional to 5,249.63, 7,244.49 and 2,891.72 is: 3,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.63 : 7,244.49 = 2,891.72 : x
  2. Step 2: Convert to fraction form
    5,249.63/7,244.49 = 2,891.72/x
  3. Step 3: Cross multiply
    5,249.63x = 7,244.49 × 2,891.72
  4. Step 4: Simplify right side
    5,249.63x = 20,949,000.40
  5. Step 5: Solve for x
    x = 20,949,000.40/5,249.63
  6. Step 6: Final answer
    x = 3,990.57

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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.