Home / 3,886.52-5,828.70-2,787.62

Finding the Fourth Proportional to 3,886.52, 5,828.70 and 2,787.62

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Solution

The fourth proportional to 3,886.52, 5,828.70 and 2,787.62 is: 4,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.52 : 5,828.70 = 2,787.62 : x
  2. Step 2: Convert to fraction form
    3,886.52/5,828.70 = 2,787.62/x
  3. Step 3: Cross multiply
    3,886.52x = 5,828.70 × 2,787.62
  4. Step 4: Simplify right side
    3,886.52x = 16,248,200.69
  5. Step 5: Solve for x
    x = 16,248,200.69/3,886.52
  6. Step 6: Final answer
    x = 4,180.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.