Home / 5,138.61-7,083.36-4,192.73

Finding the Fourth Proportional to 5,138.61, 7,083.36 and 4,192.73

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Solution

The fourth proportional to 5,138.61, 7,083.36 and 4,192.73 is: 5,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.61 : 7,083.36 = 4,192.73 : x
  2. Step 2: Convert to fraction form
    5,138.61/7,083.36 = 4,192.73/x
  3. Step 3: Cross multiply
    5,138.61x = 7,083.36 × 4,192.73
  4. Step 4: Simplify right side
    5,138.61x = 29,698,633.68
  5. Step 5: Solve for x
    x = 29,698,633.68/5,138.61
  6. Step 6: Final answer
    x = 5,779.51

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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.