Home / 7,869.86-11,801.45-2,936.05

Finding the Fourth Proportional to 7,869.86, 11,801.45 and 2,936.05

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Solution

The fourth proportional to 7,869.86, 11,801.45 and 2,936.05 is: 4,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.86 : 11,801.45 = 2,936.05 : x
  2. Step 2: Convert to fraction form
    7,869.86/11,801.45 = 2,936.05/x
  3. Step 3: Cross multiply
    7,869.86x = 11,801.45 × 2,936.05
  4. Step 4: Simplify right side
    7,869.86x = 34,649,608.59
  5. Step 5: Solve for x
    x = 34,649,608.59/7,869.86
  6. Step 6: Final answer
    x = 4,402.82

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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.