Home / 5,212.88-7,192.62-3,087.35

Finding the Fourth Proportional to 5,212.88, 7,192.62 and 3,087.35

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Solution

The fourth proportional to 5,212.88, 7,192.62 and 3,087.35 is: 4,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.88 : 7,192.62 = 3,087.35 : x
  2. Step 2: Convert to fraction form
    5,212.88/7,192.62 = 3,087.35/x
  3. Step 3: Cross multiply
    5,212.88x = 7,192.62 × 3,087.35
  4. Step 4: Simplify right side
    5,212.88x = 22,206,135.36
  5. Step 5: Solve for x
    x = 22,206,135.36/5,212.88
  6. Step 6: Final answer
    x = 4,259.86

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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.