Home / 2,838.39-3,916.98-1,579.56

Finding the Fourth Proportional to 2,838.39, 3,916.98 and 1,579.56

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Solution

The fourth proportional to 2,838.39, 3,916.98 and 1,579.56 is: 2,179.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.39 : 3,916.98 = 1,579.56 : x
  2. Step 2: Convert to fraction form
    2,838.39/3,916.98 = 1,579.56/x
  3. Step 3: Cross multiply
    2,838.39x = 3,916.98 × 1,579.56
  4. Step 4: Simplify right side
    2,838.39x = 6,187,104.93
  5. Step 5: Solve for x
    x = 6,187,104.93/2,838.39
  6. Step 6: Final answer
    x = 2,179.79

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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.