Home / 5,148.96-7,105.56-2,791.08

Finding the Fourth Proportional to 5,148.96, 7,105.56 and 2,791.08

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Solution

The fourth proportional to 5,148.96, 7,105.56 and 2,791.08 is: 3,851.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.96 : 7,105.56 = 2,791.08 : x
  2. Step 2: Convert to fraction form
    5,148.96/7,105.56 = 2,791.08/x
  3. Step 3: Cross multiply
    5,148.96x = 7,105.56 × 2,791.08
  4. Step 4: Simplify right side
    5,148.96x = 19,832,186.40
  5. Step 5: Solve for x
    x = 19,832,186.40/5,148.96
  6. Step 6: Final answer
    x = 3,851.69

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1.5x scale

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.