Home / 3,618.44-4,991.64-2,291.66

Finding the Fourth Proportional to 3,618.44, 4,991.64 and 2,291.66

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Solution

The fourth proportional to 3,618.44, 4,991.64 and 2,291.66 is: 3,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.44 : 4,991.64 = 2,291.66 : x
  2. Step 2: Convert to fraction form
    3,618.44/4,991.64 = 2,291.66/x
  3. Step 3: Cross multiply
    3,618.44x = 4,991.64 × 2,291.66
  4. Step 4: Simplify right side
    3,618.44x = 11,439,141.72
  5. Step 5: Solve for x
    x = 11,439,141.72/3,618.44
  6. Step 6: Final answer
    x = 3,161.35

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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.