Home / 3,933.32-5,428.04-2,254.68

Finding the Fourth Proportional to 3,933.32, 5,428.04 and 2,254.68

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Solution

The fourth proportional to 3,933.32, 5,428.04 and 2,254.68 is: 3,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.32 : 5,428.04 = 2,254.68 : x
  2. Step 2: Convert to fraction form
    3,933.32/5,428.04 = 2,254.68/x
  3. Step 3: Cross multiply
    3,933.32x = 5,428.04 × 2,254.68
  4. Step 4: Simplify right side
    3,933.32x = 12,238,481.95
  5. Step 5: Solve for x
    x = 12,238,481.95/3,933.32
  6. Step 6: Final answer
    x = 3,111.49

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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.