Home / 5,140.75-7,712.21-2,062.75

Finding the Fourth Proportional to 5,140.75, 7,712.21 and 2,062.75

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Solution

The fourth proportional to 5,140.75, 7,712.21 and 2,062.75 is: 3,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.75 : 7,712.21 = 2,062.75 : x
  2. Step 2: Convert to fraction form
    5,140.75/7,712.21 = 2,062.75/x
  3. Step 3: Cross multiply
    5,140.75x = 7,712.21 × 2,062.75
  4. Step 4: Simplify right side
    5,140.75x = 15,908,350.86
  5. Step 5: Solve for x
    x = 15,908,350.86/5,140.75
  6. Step 6: Final answer
    x = 3,094.56

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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.