Home / 5,521.20-7,619.19-3,163.32

Finding the Fourth Proportional to 5,521.20, 7,619.19 and 3,163.32

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Solution

The fourth proportional to 5,521.20, 7,619.19 and 3,163.32 is: 4,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.20 : 7,619.19 = 3,163.32 : x
  2. Step 2: Convert to fraction form
    5,521.20/7,619.19 = 3,163.32/x
  3. Step 3: Cross multiply
    5,521.20x = 7,619.19 × 3,163.32
  4. Step 4: Simplify right side
    5,521.20x = 24,101,936.11
  5. Step 5: Solve for x
    x = 24,101,936.11/5,521.20
  6. Step 6: Final answer
    x = 4,365.34

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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.