Home / 7,822.96-11,740.20-3,079.84

Finding the Fourth Proportional to 7,822.96, 11,740.20 and 3,079.84

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Solution

The fourth proportional to 7,822.96, 11,740.20 and 3,079.84 is: 4,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.96 : 11,740.20 = 3,079.84 : x
  2. Step 2: Convert to fraction form
    7,822.96/11,740.20 = 3,079.84/x
  3. Step 3: Cross multiply
    7,822.96x = 11,740.20 × 3,079.84
  4. Step 4: Simplify right side
    7,822.96x = 36,157,937.57
  5. Step 5: Solve for x
    x = 36,157,937.57/7,822.96
  6. Step 6: Final answer
    x = 4,622.03

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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.