Home / 5,519.31-7,618.28-3,163.02

Finding the Fourth Proportional to 5,519.31, 7,618.28 and 3,163.02

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Solution

The fourth proportional to 5,519.31, 7,618.28 and 3,163.02 is: 4,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.31 : 7,618.28 = 3,163.02 : x
  2. Step 2: Convert to fraction form
    5,519.31/7,618.28 = 3,163.02/x
  3. Step 3: Cross multiply
    5,519.31x = 7,618.28 × 3,163.02
  4. Step 4: Simplify right side
    5,519.31x = 24,096,772.01
  5. Step 5: Solve for x
    x = 24,096,772.01/5,519.31
  6. Step 6: Final answer
    x = 4,365.90

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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.