Home / 7,947.48-11,921.76-2,104

Finding the Fourth Proportional to 7,947.48, 11,921.76 and 2,104

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Solution

The fourth proportional to 7,947.48, 11,921.76 and 2,104 is: 3,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.48 : 11,921.76 = 2,104 : x
  2. Step 2: Convert to fraction form
    7,947.48/11,921.76 = 2,104/x
  3. Step 3: Cross multiply
    7,947.48x = 11,921.76 × 2,104
  4. Step 4: Simplify right side
    7,947.48x = 25,083,383.04
  5. Step 5: Solve for x
    x = 25,083,383.04/7,947.48
  6. Step 6: Final answer
    x = 3,156.14

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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.