Home / 3,220.61-4,456.62-2,747.79

Finding the Fourth Proportional to 3,220.61, 4,456.62 and 2,747.79

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Solution

The fourth proportional to 3,220.61, 4,456.62 and 2,747.79 is: 3,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.61 : 4,456.62 = 2,747.79 : x
  2. Step 2: Convert to fraction form
    3,220.61/4,456.62 = 2,747.79/x
  3. Step 3: Cross multiply
    3,220.61x = 4,456.62 × 2,747.79
  4. Step 4: Simplify right side
    3,220.61x = 12,245,855.87
  5. Step 5: Solve for x
    x = 12,245,855.87/3,220.61
  6. Step 6: Final answer
    x = 3,802.35

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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.