Home / 5,249.07-7,243.45-2,891.16

Finding the Fourth Proportional to 5,249.07, 7,243.45 and 2,891.16

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Solution

The fourth proportional to 5,249.07, 7,243.45 and 2,891.16 is: 3,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.07 : 7,243.45 = 2,891.16 : x
  2. Step 2: Convert to fraction form
    5,249.07/7,243.45 = 2,891.16/x
  3. Step 3: Cross multiply
    5,249.07x = 7,243.45 × 2,891.16
  4. Step 4: Simplify right side
    5,249.07x = 20,941,972.90
  5. Step 5: Solve for x
    x = 20,941,972.90/5,249.07
  6. Step 6: Final answer
    x = 3,989.65

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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.