Home / 5,226.82-7,212.92-2,988.90

Finding the Fourth Proportional to 5,226.82, 7,212.92 and 2,988.90

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Solution

The fourth proportional to 5,226.82, 7,212.92 and 2,988.90 is: 4,124.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.82 : 7,212.92 = 2,988.90 : x
  2. Step 2: Convert to fraction form
    5,226.82/7,212.92 = 2,988.90/x
  3. Step 3: Cross multiply
    5,226.82x = 7,212.92 × 2,988.90
  4. Step 4: Simplify right side
    5,226.82x = 21,558,706.86
  5. Step 5: Solve for x
    x = 21,558,706.86/5,226.82
  6. Step 6: Final answer
    x = 4,124.63

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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.