Home / 3,395.40-5,098.36-2,105.06

Finding the Fourth Proportional to 3,395.40, 5,098.36 and 2,105.06

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Solution

The fourth proportional to 3,395.40, 5,098.36 and 2,105.06 is: 3,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.40 : 5,098.36 = 2,105.06 : x
  2. Step 2: Convert to fraction form
    3,395.40/5,098.36 = 2,105.06/x
  3. Step 3: Cross multiply
    3,395.40x = 5,098.36 × 2,105.06
  4. Step 4: Simplify right side
    3,395.40x = 10,732,353.70
  5. Step 5: Solve for x
    x = 10,732,353.70/3,395.40
  6. Step 6: Final answer
    x = 3,160.85

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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.