Home / 7,249.80-10,868.16-2,631.72

Finding the Fourth Proportional to 7,249.80, 10,868.16 and 2,631.72

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Solution

The fourth proportional to 7,249.80, 10,868.16 and 2,631.72 is: 3,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.80 : 10,868.16 = 2,631.72 : x
  2. Step 2: Convert to fraction form
    7,249.80/10,868.16 = 2,631.72/x
  3. Step 3: Cross multiply
    7,249.80x = 10,868.16 × 2,631.72
  4. Step 4: Simplify right side
    7,249.80x = 28,601,954.04
  5. Step 5: Solve for x
    x = 28,601,954.04/7,249.80
  6. Step 6: Final answer
    x = 3,945.21

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1.5x scale

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.