Home / 5,249.08-7,243.32-2,890.90

Finding the Fourth Proportional to 5,249.08, 7,243.32 and 2,890.90

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Solution

The fourth proportional to 5,249.08, 7,243.32 and 2,890.90 is: 3,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.08 : 7,243.32 = 2,890.90 : x
  2. Step 2: Convert to fraction form
    5,249.08/7,243.32 = 2,890.90/x
  3. Step 3: Cross multiply
    5,249.08x = 7,243.32 × 2,890.90
  4. Step 4: Simplify right side
    5,249.08x = 20,939,713.79
  5. Step 5: Solve for x
    x = 20,939,713.79/5,249.08
  6. Step 6: Final answer
    x = 3,989.22

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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.