Home / 5,249.37-7,244.11-2,891.51

Finding the Fourth Proportional to 5,249.37, 7,244.11 and 2,891.51

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Solution

The fourth proportional to 5,249.37, 7,244.11 and 2,891.51 is: 3,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.37 : 7,244.11 = 2,891.51 : x
  2. Step 2: Convert to fraction form
    5,249.37/7,244.11 = 2,891.51/x
  3. Step 3: Cross multiply
    5,249.37x = 7,244.11 × 2,891.51
  4. Step 4: Simplify right side
    5,249.37x = 20,946,416.51
  5. Step 5: Solve for x
    x = 20,946,416.51/5,249.37
  6. Step 6: Final answer
    x = 3,990.27

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1.5x scale

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.