Home / 5,151.54-7,109.09-2,793.68

Finding the Fourth Proportional to 5,151.54, 7,109.09 and 2,793.68

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Solution

The fourth proportional to 5,151.54, 7,109.09 and 2,793.68 is: 3,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.54 : 7,109.09 = 2,793.68 : x
  2. Step 2: Convert to fraction form
    5,151.54/7,109.09 = 2,793.68/x
  3. Step 3: Cross multiply
    5,151.54x = 7,109.09 × 2,793.68
  4. Step 4: Simplify right side
    5,151.54x = 19,860,473.04
  5. Step 5: Solve for x
    x = 19,860,473.04/5,151.54
  6. Step 6: Final answer
    x = 3,855.25

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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.