Home / 3,954.45-5,455.98-3,290.25

Finding the Fourth Proportional to 3,954.45, 5,455.98 and 3,290.25

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Solution

The fourth proportional to 3,954.45, 5,455.98 and 3,290.25 is: 4,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.45 : 5,455.98 = 3,290.25 : x
  2. Step 2: Convert to fraction form
    3,954.45/5,455.98 = 3,290.25/x
  3. Step 3: Cross multiply
    3,954.45x = 5,455.98 × 3,290.25
  4. Step 4: Simplify right side
    3,954.45x = 17,951,538.20
  5. Step 5: Solve for x
    x = 17,951,538.20/3,954.45
  6. Step 6: Final answer
    x = 4,539.58

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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.