Home / 4,917.09-6,784.83-2,820.81

Finding the Fourth Proportional to 4,917.09, 6,784.83 and 2,820.81

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Solution

The fourth proportional to 4,917.09, 6,784.83 and 2,820.81 is: 3,892.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.09 : 6,784.83 = 2,820.81 : x
  2. Step 2: Convert to fraction form
    4,917.09/6,784.83 = 2,820.81/x
  3. Step 3: Cross multiply
    4,917.09x = 6,784.83 × 2,820.81
  4. Step 4: Simplify right side
    4,917.09x = 19,138,716.31
  5. Step 5: Solve for x
    x = 19,138,716.31/4,917.09
  6. Step 6: Final answer
    x = 3,892.29

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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.