Home / 7,215.91-10,825.20-2,286.79

Finding the Fourth Proportional to 7,215.91, 10,825.20 and 2,286.79

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Solution

The fourth proportional to 7,215.91, 10,825.20 and 2,286.79 is: 3,430.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.91 : 10,825.20 = 2,286.79 : x
  2. Step 2: Convert to fraction form
    7,215.91/10,825.20 = 2,286.79/x
  3. Step 3: Cross multiply
    7,215.91x = 10,825.20 × 2,286.79
  4. Step 4: Simplify right side
    7,215.91x = 24,754,959.11
  5. Step 5: Solve for x
    x = 24,754,959.11/7,215.91
  6. Step 6: Final answer
    x = 3,430.61

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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.