Home / 4,912.05-7,336.82-4,220.72

Finding the Fourth Proportional to 4,912.05, 7,336.82 and 4,220.72

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Solution

The fourth proportional to 4,912.05, 7,336.82 and 4,220.72 is: 6,304.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.05 : 7,336.82 = 4,220.72 : x
  2. Step 2: Convert to fraction form
    4,912.05/7,336.82 = 4,220.72/x
  3. Step 3: Cross multiply
    4,912.05x = 7,336.82 × 4,220.72
  4. Step 4: Simplify right side
    4,912.05x = 30,966,605.12
  5. Step 5: Solve for x
    x = 30,966,605.12/4,912.05
  6. Step 6: Final answer
    x = 6,304.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.