Home / 3,611.10-5,416.65-2,149.26

Finding the Fourth Proportional to 3,611.10, 5,416.65 and 2,149.26

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Solution

The fourth proportional to 3,611.10, 5,416.65 and 2,149.26 is: 3,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.10 : 5,416.65 = 2,149.26 : x
  2. Step 2: Convert to fraction form
    3,611.10/5,416.65 = 2,149.26/x
  3. Step 3: Cross multiply
    3,611.10x = 5,416.65 × 2,149.26
  4. Step 4: Simplify right side
    3,611.10x = 11,641,789.18
  5. Step 5: Solve for x
    x = 11,641,789.18/3,611.10
  6. Step 6: Final answer
    x = 3,223.89

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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.