Home / 5,027.70-6,932.76-3,138.61

Finding the Fourth Proportional to 5,027.70, 6,932.76 and 3,138.61

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Solution

The fourth proportional to 5,027.70, 6,932.76 and 3,138.61 is: 4,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,027.70 : 6,932.76 = 3,138.61 : x
  2. Step 2: Convert to fraction form
    5,027.70/6,932.76 = 3,138.61/x
  3. Step 3: Cross multiply
    5,027.70x = 6,932.76 × 3,138.61
  4. Step 4: Simplify right side
    5,027.70x = 21,759,220.74
  5. Step 5: Solve for x
    x = 21,759,220.74/5,027.70
  6. Step 6: Final answer
    x = 4,327.86

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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.