Home / 5,027.60-6,938.42-2,789.57

Finding the Fourth Proportional to 5,027.60, 6,938.42 and 2,789.57

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Solution

The fourth proportional to 5,027.60, 6,938.42 and 2,789.57 is: 3,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,027.60 : 6,938.42 = 2,789.57 : x
  2. Step 2: Convert to fraction form
    5,027.60/6,938.42 = 2,789.57/x
  3. Step 3: Cross multiply
    5,027.60x = 6,938.42 × 2,789.57
  4. Step 4: Simplify right side
    5,027.60x = 19,355,159.64
  5. Step 5: Solve for x
    x = 19,355,159.64/5,027.60
  6. Step 6: Final answer
    x = 3,849.78

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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.