Home / 3,933.21-5,428.08-2,254.17

Finding the Fourth Proportional to 3,933.21, 5,428.08 and 2,254.17

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Solution

The fourth proportional to 3,933.21, 5,428.08 and 2,254.17 is: 3,110.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.21 : 5,428.08 = 2,254.17 : x
  2. Step 2: Convert to fraction form
    3,933.21/5,428.08 = 2,254.17/x
  3. Step 3: Cross multiply
    3,933.21x = 5,428.08 × 2,254.17
  4. Step 4: Simplify right side
    3,933.21x = 12,235,815.09
  5. Step 5: Solve for x
    x = 12,235,815.09/3,933.21
  6. Step 6: Final answer
    x = 3,110.90

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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.