Home / 7,848.87-11,761.79-3,947.91

Finding the Fourth Proportional to 7,848.87, 11,761.79 and 3,947.91

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Solution

The fourth proportional to 7,848.87, 11,761.79 and 3,947.91 is: 5,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,848.87 : 11,761.79 = 3,947.91 : x
  2. Step 2: Convert to fraction form
    7,848.87/11,761.79 = 3,947.91/x
  3. Step 3: Cross multiply
    7,848.87x = 11,761.79 × 3,947.91
  4. Step 4: Simplify right side
    7,848.87x = 46,434,468.62
  5. Step 5: Solve for x
    x = 46,434,468.62/7,848.87
  6. Step 6: Final answer
    x = 5,916.07

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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.