Home / 7,142.22-10,705.96-2,984.66

Finding the Fourth Proportional to 7,142.22, 10,705.96 and 2,984.66

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Solution

The fourth proportional to 7,142.22, 10,705.96 and 2,984.66 is: 4,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.22 : 10,705.96 = 2,984.66 : x
  2. Step 2: Convert to fraction form
    7,142.22/10,705.96 = 2,984.66/x
  3. Step 3: Cross multiply
    7,142.22x = 10,705.96 × 2,984.66
  4. Step 4: Simplify right side
    7,142.22x = 31,953,650.57
  5. Step 5: Solve for x
    x = 31,953,650.57/7,142.22
  6. Step 6: Final answer
    x = 4,473.91

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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.