Home / 2,838.81-3,917.75-1,579.85

Finding the Fourth Proportional to 2,838.81, 3,917.75 and 1,579.85

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Solution

The fourth proportional to 2,838.81, 3,917.75 and 1,579.85 is: 2,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.81 : 3,917.75 = 1,579.85 : x
  2. Step 2: Convert to fraction form
    2,838.81/3,917.75 = 1,579.85/x
  3. Step 3: Cross multiply
    2,838.81x = 3,917.75 × 1,579.85
  4. Step 4: Simplify right side
    2,838.81x = 6,189,475.47
  5. Step 5: Solve for x
    x = 6,189,475.47/2,838.81
  6. Step 6: Final answer
    x = 2,180.30

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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.