Home / 5,288.24-7,924.80-2,687.60

Finding the Fourth Proportional to 5,288.24, 7,924.80 and 2,687.60

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Solution

The fourth proportional to 5,288.24, 7,924.80 and 2,687.60 is: 4,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.24 : 7,924.80 = 2,687.60 : x
  2. Step 2: Convert to fraction form
    5,288.24/7,924.80 = 2,687.60/x
  3. Step 3: Cross multiply
    5,288.24x = 7,924.80 × 2,687.60
  4. Step 4: Simplify right side
    5,288.24x = 21,298,692.48
  5. Step 5: Solve for x
    x = 21,298,692.48/5,288.24
  6. Step 6: Final answer
    x = 4,027.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.