Home / 5,103.19-7,042.43-2,865.09

Finding the Fourth Proportional to 5,103.19, 7,042.43 and 2,865.09

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Solution

The fourth proportional to 5,103.19, 7,042.43 and 2,865.09 is: 3,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.19 : 7,042.43 = 2,865.09 : x
  2. Step 2: Convert to fraction form
    5,103.19/7,042.43 = 2,865.09/x
  3. Step 3: Cross multiply
    5,103.19x = 7,042.43 × 2,865.09
  4. Step 4: Simplify right side
    5,103.19x = 20,177,181.44
  5. Step 5: Solve for x
    x = 20,177,181.44/5,103.19
  6. Step 6: Final answer
    x = 3,953.84

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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.