Home / 5,226.24-7,212-3,131.52

Finding the Fourth Proportional to 5,226.24, 7,212 and 3,131.52

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Solution

The fourth proportional to 5,226.24, 7,212 and 3,131.52 is: 4,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.24 : 7,212 = 3,131.52 : x
  2. Step 2: Convert to fraction form
    5,226.24/7,212 = 3,131.52/x
  3. Step 3: Cross multiply
    5,226.24x = 7,212 × 3,131.52
  4. Step 4: Simplify right side
    5,226.24x = 22,584,522.24
  5. Step 5: Solve for x
    x = 22,584,522.24/5,226.24
  6. Step 6: Final answer
    x = 4,321.37

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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.