Home / 3,918.22-5,407.24-2,216.59

Finding the Fourth Proportional to 3,918.22, 5,407.24 and 2,216.59

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Solution

The fourth proportional to 3,918.22, 5,407.24 and 2,216.59 is: 3,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.22 : 5,407.24 = 2,216.59 : x
  2. Step 2: Convert to fraction form
    3,918.22/5,407.24 = 2,216.59/x
  3. Step 3: Cross multiply
    3,918.22x = 5,407.24 × 2,216.59
  4. Step 4: Simplify right side
    3,918.22x = 11,985,612.62
  5. Step 5: Solve for x
    x = 11,985,612.62/3,918.22
  6. Step 6: Final answer
    x = 3,058.95

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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.