Home / 5,151.82-7,109.48-2,793.96

Finding the Fourth Proportional to 5,151.82, 7,109.48 and 2,793.96

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Solution

The fourth proportional to 5,151.82, 7,109.48 and 2,793.96 is: 3,855.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.82 : 7,109.48 = 2,793.96 : x
  2. Step 2: Convert to fraction form
    5,151.82/7,109.48 = 2,793.96/x
  3. Step 3: Cross multiply
    5,151.82x = 7,109.48 × 2,793.96
  4. Step 4: Simplify right side
    5,151.82x = 19,863,602.74
  5. Step 5: Solve for x
    x = 19,863,602.74/5,151.82
  6. Step 6: Final answer
    x = 3,855.65

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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.