Home / 5,156.75-7,724.66-2,379.53

Finding the Fourth Proportional to 5,156.75, 7,724.66 and 2,379.53

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Solution

The fourth proportional to 5,156.75, 7,724.66 and 2,379.53 is: 3,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.75 : 7,724.66 = 2,379.53 : x
  2. Step 2: Convert to fraction form
    5,156.75/7,724.66 = 2,379.53/x
  3. Step 3: Cross multiply
    5,156.75x = 7,724.66 × 2,379.53
  4. Step 4: Simplify right side
    5,156.75x = 18,381,009.69
  5. Step 5: Solve for x
    x = 18,381,009.69/5,156.75
  6. Step 6: Final answer
    x = 3,564.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.