Home / 5,155.39-7,114.45-2,797.54

Finding the Fourth Proportional to 5,155.39, 7,114.45 and 2,797.54

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Solution

The fourth proportional to 5,155.39, 7,114.45 and 2,797.54 is: 3,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.39 : 7,114.45 = 2,797.54 : x
  2. Step 2: Convert to fraction form
    5,155.39/7,114.45 = 2,797.54/x
  3. Step 3: Cross multiply
    5,155.39x = 7,114.45 × 2,797.54
  4. Step 4: Simplify right side
    5,155.39x = 19,902,958.45
  5. Step 5: Solve for x
    x = 19,902,958.45/5,155.39
  6. Step 6: Final answer
    x = 3,860.61

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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.