Home / 5,439.81-7,507.96-3,201.58

Finding the Fourth Proportional to 5,439.81, 7,507.96 and 3,201.58

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Solution

The fourth proportional to 5,439.81, 7,507.96 and 3,201.58 is: 4,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.81 : 7,507.96 = 3,201.58 : x
  2. Step 2: Convert to fraction form
    5,439.81/7,507.96 = 3,201.58/x
  3. Step 3: Cross multiply
    5,439.81x = 7,507.96 × 3,201.58
  4. Step 4: Simplify right side
    5,439.81x = 24,037,335.96
  5. Step 5: Solve for x
    x = 24,037,335.96/5,439.81
  6. Step 6: Final answer
    x = 4,418.78

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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.