Home / 5,103.57-7,042.91-2,865.45

Finding the Fourth Proportional to 5,103.57, 7,042.91 and 2,865.45

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Solution

The fourth proportional to 5,103.57, 7,042.91 and 2,865.45 is: 3,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.57 : 7,042.91 = 2,865.45 : x
  2. Step 2: Convert to fraction form
    5,103.57/7,042.91 = 2,865.45/x
  3. Step 3: Cross multiply
    5,103.57x = 7,042.91 × 2,865.45
  4. Step 4: Simplify right side
    5,103.57x = 20,181,092.13
  5. Step 5: Solve for x
    x = 20,181,092.13/5,103.57
  6. Step 6: Final answer
    x = 3,954.31

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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.