Home / 5,151.66-7,109.29-2,793.81

Finding the Fourth Proportional to 5,151.66, 7,109.29 and 2,793.81

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Solution

The fourth proportional to 5,151.66, 7,109.29 and 2,793.81 is: 3,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.66 : 7,109.29 = 2,793.81 : x
  2. Step 2: Convert to fraction form
    5,151.66/7,109.29 = 2,793.81/x
  3. Step 3: Cross multiply
    5,151.66x = 7,109.29 × 2,793.81
  4. Step 4: Simplify right side
    5,151.66x = 19,862,005.49
  5. Step 5: Solve for x
    x = 19,862,005.49/5,151.66
  6. Step 6: Final answer
    x = 3,855.46

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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.