Home / 5,131.35-7,080.68-2,893.32

Finding the Fourth Proportional to 5,131.35, 7,080.68 and 2,893.32

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Solution

The fourth proportional to 5,131.35, 7,080.68 and 2,893.32 is: 3,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.35 : 7,080.68 = 2,893.32 : x
  2. Step 2: Convert to fraction form
    5,131.35/7,080.68 = 2,893.32/x
  3. Step 3: Cross multiply
    5,131.35x = 7,080.68 × 2,893.32
  4. Step 4: Simplify right side
    5,131.35x = 20,486,680.29
  5. Step 5: Solve for x
    x = 20,486,680.29/5,131.35
  6. Step 6: Final answer
    x = 3,992.45

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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.