Home / 5,226.87-7,212-2,989.50

Finding the Fourth Proportional to 5,226.87, 7,212 and 2,989.50

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Solution

The fourth proportional to 5,226.87, 7,212 and 2,989.50 is: 4,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.87 : 7,212 = 2,989.50 : x
  2. Step 2: Convert to fraction form
    5,226.87/7,212 = 2,989.50/x
  3. Step 3: Cross multiply
    5,226.87x = 7,212 × 2,989.50
  4. Step 4: Simplify right side
    5,226.87x = 21,560,274
  5. Step 5: Solve for x
    x = 21,560,274/5,226.87
  6. Step 6: Final answer
    x = 4,124.89

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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.