Home / 5,103.45-7,042.73-2,865.33

Finding the Fourth Proportional to 5,103.45, 7,042.73 and 2,865.33

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Solution

The fourth proportional to 5,103.45, 7,042.73 and 2,865.33 is: 3,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.45 : 7,042.73 = 2,865.33 : x
  2. Step 2: Convert to fraction form
    5,103.45/7,042.73 = 2,865.33/x
  3. Step 3: Cross multiply
    5,103.45x = 7,042.73 × 2,865.33
  4. Step 4: Simplify right side
    5,103.45x = 20,179,731.22
  5. Step 5: Solve for x
    x = 20,179,731.22/5,103.45
  6. Step 6: Final answer
    x = 3,954.14

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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.