Home / 5,108.52-7,050.42-3,119.34

Finding the Fourth Proportional to 5,108.52, 7,050.42 and 3,119.34

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Solution

The fourth proportional to 5,108.52, 7,050.42 and 3,119.34 is: 4,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.52 : 7,050.42 = 3,119.34 : x
  2. Step 2: Convert to fraction form
    5,108.52/7,050.42 = 3,119.34/x
  3. Step 3: Cross multiply
    5,108.52x = 7,050.42 × 3,119.34
  4. Step 4: Simplify right side
    5,108.52x = 21,992,657.12
  5. Step 5: Solve for x
    x = 21,992,657.12/5,108.52
  6. Step 6: Final answer
    x = 4,305.09

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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.