Home / 5,229.14-7,216.36-3,105.72

Finding the Fourth Proportional to 5,229.14, 7,216.36 and 3,105.72

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Solution

The fourth proportional to 5,229.14, 7,216.36 and 3,105.72 is: 4,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.14 : 7,216.36 = 3,105.72 : x
  2. Step 2: Convert to fraction form
    5,229.14/7,216.36 = 3,105.72/x
  3. Step 3: Cross multiply
    5,229.14x = 7,216.36 × 3,105.72
  4. Step 4: Simplify right side
    5,229.14x = 22,411,993.58
  5. Step 5: Solve for x
    x = 22,411,993.58/5,229.14
  6. Step 6: Final answer
    x = 4,285.98

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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.