Home / 5,148.82-7,105.36-2,790.96

Finding the Fourth Proportional to 5,148.82, 7,105.36 and 2,790.96

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Solution

The fourth proportional to 5,148.82, 7,105.36 and 2,790.96 is: 3,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.82 : 7,105.36 = 2,790.96 : x
  2. Step 2: Convert to fraction form
    5,148.82/7,105.36 = 2,790.96/x
  3. Step 3: Cross multiply
    5,148.82x = 7,105.36 × 2,790.96
  4. Step 4: Simplify right side
    5,148.82x = 19,830,775.55
  5. Step 5: Solve for x
    x = 19,830,775.55/5,148.82
  6. Step 6: Final answer
    x = 3,851.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.