Home / 7,249.32-10,871.42-3,143.08

Finding the Fourth Proportional to 7,249.32, 10,871.42 and 3,143.08

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Solution

The fourth proportional to 7,249.32, 10,871.42 and 3,143.08 is: 4,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.32 : 10,871.42 = 3,143.08 : x
  2. Step 2: Convert to fraction form
    7,249.32/10,871.42 = 3,143.08/x
  3. Step 3: Cross multiply
    7,249.32x = 10,871.42 × 3,143.08
  4. Step 4: Simplify right side
    7,249.32x = 34,169,742.77
  5. Step 5: Solve for x
    x = 34,169,742.77/7,249.32
  6. Step 6: Final answer
    x = 4,713.51

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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.