Home / 5,142.48-7,103.88-4,093.20

Finding the Fourth Proportional to 5,142.48, 7,103.88 and 4,093.20

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Solution

The fourth proportional to 5,142.48, 7,103.88 and 4,093.20 is: 5,654.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.48 : 7,103.88 = 4,093.20 : x
  2. Step 2: Convert to fraction form
    5,142.48/7,103.88 = 4,093.20/x
  3. Step 3: Cross multiply
    5,142.48x = 7,103.88 × 4,093.20
  4. Step 4: Simplify right side
    5,142.48x = 29,077,601.62
  5. Step 5: Solve for x
    x = 29,077,601.62/5,142.48
  6. Step 6: Final answer
    x = 5,654.39

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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.