Home / 5,131.20-7,080.96-2,893.04

Finding the Fourth Proportional to 5,131.20, 7,080.96 and 2,893.04

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Solution

The fourth proportional to 5,131.20, 7,080.96 and 2,893.04 is: 3,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.20 : 7,080.96 = 2,893.04 : x
  2. Step 2: Convert to fraction form
    5,131.20/7,080.96 = 2,893.04/x
  3. Step 3: Cross multiply
    5,131.20x = 7,080.96 × 2,893.04
  4. Step 4: Simplify right side
    5,131.20x = 20,485,500.52
  5. Step 5: Solve for x
    x = 20,485,500.52/5,131.20
  6. Step 6: Final answer
    x = 3,992.34

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Half scale
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Double scale
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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.