Home / 5,728.13-8,589.42-2,215.56

Finding the Fourth Proportional to 5,728.13, 8,589.42 and 2,215.56

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Solution

The fourth proportional to 5,728.13, 8,589.42 and 2,215.56 is: 3,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.13 : 8,589.42 = 2,215.56 : x
  2. Step 2: Convert to fraction form
    5,728.13/8,589.42 = 2,215.56/x
  3. Step 3: Cross multiply
    5,728.13x = 8,589.42 × 2,215.56
  4. Step 4: Simplify right side
    5,728.13x = 19,030,375.38
  5. Step 5: Solve for x
    x = 19,030,375.38/5,728.13
  6. Step 6: Final answer
    x = 3,322.27

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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.