Home / 3,881.21-5,355.20-3,254.27

Finding the Fourth Proportional to 3,881.21, 5,355.20 and 3,254.27

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Solution

The fourth proportional to 3,881.21, 5,355.20 and 3,254.27 is: 4,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.21 : 5,355.20 = 3,254.27 : x
  2. Step 2: Convert to fraction form
    3,881.21/5,355.20 = 3,254.27/x
  3. Step 3: Cross multiply
    3,881.21x = 5,355.20 × 3,254.27
  4. Step 4: Simplify right side
    3,881.21x = 17,427,250.43
  5. Step 5: Solve for x
    x = 17,427,250.43/3,881.21
  6. Step 6: Final answer
    x = 4,490.16

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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.