Home / 4,072.60-6,108.90-2,128.60

Finding the Fourth Proportional to 4,072.60, 6,108.90 and 2,128.60

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Solution

The fourth proportional to 4,072.60, 6,108.90 and 2,128.60 is: 3,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.60 : 6,108.90 = 2,128.60 : x
  2. Step 2: Convert to fraction form
    4,072.60/6,108.90 = 2,128.60/x
  3. Step 3: Cross multiply
    4,072.60x = 6,108.90 × 2,128.60
  4. Step 4: Simplify right side
    4,072.60x = 13,003,404.54
  5. Step 5: Solve for x
    x = 13,003,404.54/4,072.60
  6. Step 6: Final answer
    x = 3,192.90

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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.