Home / 5,211.75-7,822.90-4,622.64

Finding the Fourth Proportional to 5,211.75, 7,822.90 and 4,622.64

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Solution

The fourth proportional to 5,211.75, 7,822.90 and 4,622.64 is: 6,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.75 : 7,822.90 = 4,622.64 : x
  2. Step 2: Convert to fraction form
    5,211.75/7,822.90 = 4,622.64/x
  3. Step 3: Cross multiply
    5,211.75x = 7,822.90 × 4,622.64
  4. Step 4: Simplify right side
    5,211.75x = 36,162,426.90
  5. Step 5: Solve for x
    x = 36,162,426.90/5,211.75
  6. Step 6: Final answer
    x = 6,938.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.