Home / 7,051.46-10,575.05-2,119.79

Finding the Fourth Proportional to 7,051.46, 10,575.05 and 2,119.79

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Solution

The fourth proportional to 7,051.46, 10,575.05 and 2,119.79 is: 3,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.46 : 10,575.05 = 2,119.79 : x
  2. Step 2: Convert to fraction form
    7,051.46/10,575.05 = 2,119.79/x
  3. Step 3: Cross multiply
    7,051.46x = 10,575.05 × 2,119.79
  4. Step 4: Simplify right side
    7,051.46x = 22,416,837.66
  5. Step 5: Solve for x
    x = 22,416,837.66/7,051.46
  6. Step 6: Final answer
    x = 3,179.04

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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.