Home / 3,429.45-4,731.40-2,170.03

Finding the Fourth Proportional to 3,429.45, 4,731.40 and 2,170.03

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Solution

The fourth proportional to 3,429.45, 4,731.40 and 2,170.03 is: 2,993.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.45 : 4,731.40 = 2,170.03 : x
  2. Step 2: Convert to fraction form
    3,429.45/4,731.40 = 2,170.03/x
  3. Step 3: Cross multiply
    3,429.45x = 4,731.40 × 2,170.03
  4. Step 4: Simplify right side
    3,429.45x = 10,267,279.94
  5. Step 5: Solve for x
    x = 10,267,279.94/3,429.45
  6. Step 6: Final answer
    x = 2,993.86

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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.