Home / 3,947.84-5,923.76-2,391.56

Finding the Fourth Proportional to 3,947.84, 5,923.76 and 2,391.56

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Solution

The fourth proportional to 3,947.84, 5,923.76 and 2,391.56 is: 3,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.84 : 5,923.76 = 2,391.56 : x
  2. Step 2: Convert to fraction form
    3,947.84/5,923.76 = 2,391.56/x
  3. Step 3: Cross multiply
    3,947.84x = 5,923.76 × 2,391.56
  4. Step 4: Simplify right side
    3,947.84x = 14,167,027.47
  5. Step 5: Solve for x
    x = 14,167,027.47/3,947.84
  6. Step 6: Final answer
    x = 3,588.55

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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.