Home / 2,740.50-4,110.75-792.86

Finding the Fourth Proportional to 2,740.50, 4,110.75 and 792.86

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Solution

The fourth proportional to 2,740.50, 4,110.75 and 792.86 is: 1,189.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.50 : 4,110.75 = 792.86 : x
  2. Step 2: Convert to fraction form
    2,740.50/4,110.75 = 792.86/x
  3. Step 3: Cross multiply
    2,740.50x = 4,110.75 × 792.86
  4. Step 4: Simplify right side
    2,740.50x = 3,259,228.69
  5. Step 5: Solve for x
    x = 3,259,228.69/2,740.50
  6. Step 6: Final answer
    x = 1,189.28

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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.