Home / 5,155.48-7,114.60-2,797.66

Finding the Fourth Proportional to 5,155.48, 7,114.60 and 2,797.66

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Solution

The fourth proportional to 5,155.48, 7,114.60 and 2,797.66 is: 3,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.48 : 7,114.60 = 2,797.66 : x
  2. Step 2: Convert to fraction form
    5,155.48/7,114.60 = 2,797.66/x
  3. Step 3: Cross multiply
    5,155.48x = 7,114.60 × 2,797.66
  4. Step 4: Simplify right side
    5,155.48x = 19,904,231.84
  5. Step 5: Solve for x
    x = 19,904,231.84/5,155.48
  6. Step 6: Final answer
    x = 3,860.79

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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.