Home / 5,589.36-7,711.34-3,912.66

Finding the Fourth Proportional to 5,589.36, 7,711.34 and 3,912.66

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Solution

The fourth proportional to 5,589.36, 7,711.34 and 3,912.66 is: 5,398.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.36 : 7,711.34 = 3,912.66 : x
  2. Step 2: Convert to fraction form
    5,589.36/7,711.34 = 3,912.66/x
  3. Step 3: Cross multiply
    5,589.36x = 7,711.34 × 3,912.66
  4. Step 4: Simplify right side
    5,589.36x = 30,171,832.00
  5. Step 5: Solve for x
    x = 30,171,832.00/5,589.36
  6. Step 6: Final answer
    x = 5,398.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.