Home / 2,838.56-3,917.12-1,579.57

Finding the Fourth Proportional to 2,838.56, 3,917.12 and 1,579.57

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Solution

The fourth proportional to 2,838.56, 3,917.12 and 1,579.57 is: 2,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.56 : 3,917.12 = 1,579.57 : x
  2. Step 2: Convert to fraction form
    2,838.56/3,917.12 = 1,579.57/x
  3. Step 3: Cross multiply
    2,838.56x = 3,917.12 × 1,579.57
  4. Step 4: Simplify right side
    2,838.56x = 6,187,365.24
  5. Step 5: Solve for x
    x = 6,187,365.24/2,838.56
  6. Step 6: Final answer
    x = 2,179.75

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1.5x scale

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.