Home / 3,439.62-4,745.40-2,180.34

Finding the Fourth Proportional to 3,439.62, 4,745.40 and 2,180.34

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Solution

The fourth proportional to 3,439.62, 4,745.40 and 2,180.34 is: 3,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.62 : 4,745.40 = 2,180.34 : x
  2. Step 2: Convert to fraction form
    3,439.62/4,745.40 = 2,180.34/x
  3. Step 3: Cross multiply
    3,439.62x = 4,745.40 × 2,180.34
  4. Step 4: Simplify right side
    3,439.62x = 10,346,585.44
  5. Step 5: Solve for x
    x = 10,346,585.44/3,439.62
  6. Step 6: Final answer
    x = 3,008.06

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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.