Home / 3,881.66-5,355.52-3,507.44

Finding the Fourth Proportional to 3,881.66, 5,355.52 and 3,507.44

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Solution

The fourth proportional to 3,881.66, 5,355.52 and 3,507.44 is: 4,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.66 : 5,355.52 = 3,507.44 : x
  2. Step 2: Convert to fraction form
    3,881.66/5,355.52 = 3,507.44/x
  3. Step 3: Cross multiply
    3,881.66x = 5,355.52 × 3,507.44
  4. Step 4: Simplify right side
    3,881.66x = 18,784,129.52
  5. Step 5: Solve for x
    x = 18,784,129.52/3,881.66
  6. Step 6: Final answer
    x = 4,839.21

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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.