Home / 3,618.48-4,992.70-2,202.91

Finding the Fourth Proportional to 3,618.48, 4,992.70 and 2,202.91

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Solution

The fourth proportional to 3,618.48, 4,992.70 and 2,202.91 is: 3,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.48 : 4,992.70 = 2,202.91 : x
  2. Step 2: Convert to fraction form
    3,618.48/4,992.70 = 2,202.91/x
  3. Step 3: Cross multiply
    3,618.48x = 4,992.70 × 2,202.91
  4. Step 4: Simplify right side
    3,618.48x = 10,998,468.76
  5. Step 5: Solve for x
    x = 10,998,468.76/3,618.48
  6. Step 6: Final answer
    x = 3,039.53

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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.