Home / 5,131.05-7,080.81-2,773.18

Finding the Fourth Proportional to 5,131.05, 7,080.81 and 2,773.18

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Solution

The fourth proportional to 5,131.05, 7,080.81 and 2,773.18 is: 3,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.05 : 7,080.81 = 2,773.18 : x
  2. Step 2: Convert to fraction form
    5,131.05/7,080.81 = 2,773.18/x
  3. Step 3: Cross multiply
    5,131.05x = 7,080.81 × 2,773.18
  4. Step 4: Simplify right side
    5,131.05x = 19,636,360.68
  5. Step 5: Solve for x
    x = 19,636,360.68/5,131.05
  6. Step 6: Final answer
    x = 3,826.97

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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.