Home / 5,027.80-6,938.10-2,789.50

Finding the Fourth Proportional to 5,027.80, 6,938.10 and 2,789.50

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Solution

The fourth proportional to 5,027.80, 6,938.10 and 2,789.50 is: 3,849.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,027.80 : 6,938.10 = 2,789.50 : x
  2. Step 2: Convert to fraction form
    5,027.80/6,938.10 = 2,789.50/x
  3. Step 3: Cross multiply
    5,027.80x = 6,938.10 × 2,789.50
  4. Step 4: Simplify right side
    5,027.80x = 19,353,829.95
  5. Step 5: Solve for x
    x = 19,353,829.95/5,027.80
  6. Step 6: Final answer
    x = 3,849.36

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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.