Home / 7,223.28-10,828.96-3,521.56

Finding the Fourth Proportional to 7,223.28, 10,828.96 and 3,521.56

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Solution

The fourth proportional to 7,223.28, 10,828.96 and 3,521.56 is: 5,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.28 : 10,828.96 = 3,521.56 : x
  2. Step 2: Convert to fraction form
    7,223.28/10,828.96 = 3,521.56/x
  3. Step 3: Cross multiply
    7,223.28x = 10,828.96 × 3,521.56
  4. Step 4: Simplify right side
    7,223.28x = 38,134,832.38
  5. Step 5: Solve for x
    x = 38,134,832.38/7,223.28
  6. Step 6: Final answer
    x = 5,279.43

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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.