Home / 7,938.95-11,910.89-3,259.34

Finding the Fourth Proportional to 7,938.95, 11,910.89 and 3,259.34

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Solution

The fourth proportional to 7,938.95, 11,910.89 and 3,259.34 is: 4,890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.95 : 11,910.89 = 3,259.34 : x
  2. Step 2: Convert to fraction form
    7,938.95/11,910.89 = 3,259.34/x
  3. Step 3: Cross multiply
    7,938.95x = 11,910.89 × 3,259.34
  4. Step 4: Simplify right side
    7,938.95x = 38,821,564.36
  5. Step 5: Solve for x
    x = 38,821,564.36/7,938.95
  6. Step 6: Final answer
    x = 4,890.02

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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.