Home / 3,539.68-5,299.78-2,671.36

Finding the Fourth Proportional to 3,539.68, 5,299.78 and 2,671.36

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Solution

The fourth proportional to 3,539.68, 5,299.78 and 2,671.36 is: 3,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.68 : 5,299.78 = 2,671.36 : x
  2. Step 2: Convert to fraction form
    3,539.68/5,299.78 = 2,671.36/x
  3. Step 3: Cross multiply
    3,539.68x = 5,299.78 × 2,671.36
  4. Step 4: Simplify right side
    3,539.68x = 14,157,620.30
  5. Step 5: Solve for x
    x = 14,157,620.30/3,539.68
  6. Step 6: Final answer
    x = 3,999.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.