Home / 3,894.54-5,374.29-2,216.09

Finding the Fourth Proportional to 3,894.54, 5,374.29 and 2,216.09

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Solution

The fourth proportional to 3,894.54, 5,374.29 and 2,216.09 is: 3,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.54 : 5,374.29 = 2,216.09 : x
  2. Step 2: Convert to fraction form
    3,894.54/5,374.29 = 2,216.09/x
  3. Step 3: Cross multiply
    3,894.54x = 5,374.29 × 2,216.09
  4. Step 4: Simplify right side
    3,894.54x = 11,909,883.45
  5. Step 5: Solve for x
    x = 11,909,883.45/3,894.54
  6. Step 6: Final answer
    x = 3,058.10

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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.