Home / 2,838.42-3,916.79-1,579.48

Finding the Fourth Proportional to 2,838.42, 3,916.79 and 1,579.48

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Solution

The fourth proportional to 2,838.42, 3,916.79 and 1,579.48 is: 2,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.42 : 3,916.79 = 1,579.48 : x
  2. Step 2: Convert to fraction form
    2,838.42/3,916.79 = 1,579.48/x
  3. Step 3: Cross multiply
    2,838.42x = 3,916.79 × 1,579.48
  4. Step 4: Simplify right side
    2,838.42x = 6,186,491.47
  5. Step 5: Solve for x
    x = 6,186,491.47/2,838.42
  6. Step 6: Final answer
    x = 2,179.55

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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.