Home / 5,103.64-7,042.89-2,865.49

Finding the Fourth Proportional to 5,103.64, 7,042.89 and 2,865.49

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Solution

The fourth proportional to 5,103.64, 7,042.89 and 2,865.49 is: 3,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.64 : 7,042.89 = 2,865.49 : x
  2. Step 2: Convert to fraction form
    5,103.64/7,042.89 = 2,865.49/x
  3. Step 3: Cross multiply
    5,103.64x = 7,042.89 × 2,865.49
  4. Step 4: Simplify right side
    5,103.64x = 20,181,330.87
  5. Step 5: Solve for x
    x = 20,181,330.87/5,103.64
  6. Step 6: Final answer
    x = 3,954.30

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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.