Home / 3,916.54-5,405.79-2,659.69

Finding the Fourth Proportional to 3,916.54, 5,405.79 and 2,659.69

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Solution

The fourth proportional to 3,916.54, 5,405.79 and 2,659.69 is: 3,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.54 : 5,405.79 = 2,659.69 : x
  2. Step 2: Convert to fraction form
    3,916.54/5,405.79 = 2,659.69/x
  3. Step 3: Cross multiply
    3,916.54x = 5,405.79 × 2,659.69
  4. Step 4: Simplify right side
    3,916.54x = 14,377,725.61
  5. Step 5: Solve for x
    x = 14,377,725.61/3,916.54
  6. Step 6: Final answer
    x = 3,671.03

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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.