Home / 7,981.42-11,972.46-3,051.42

Finding the Fourth Proportional to 7,981.42, 11,972.46 and 3,051.42

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Solution

The fourth proportional to 7,981.42, 11,972.46 and 3,051.42 is: 4,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.42 : 11,972.46 = 3,051.42 : x
  2. Step 2: Convert to fraction form
    7,981.42/11,972.46 = 3,051.42/x
  3. Step 3: Cross multiply
    7,981.42x = 11,972.46 × 3,051.42
  4. Step 4: Simplify right side
    7,981.42x = 36,533,003.89
  5. Step 5: Solve for x
    x = 36,533,003.89/7,981.42
  6. Step 6: Final answer
    x = 4,577.26

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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.