Home / 5,125.20-7,687.80-2,533.20

Finding the Fourth Proportional to 5,125.20, 7,687.80 and 2,533.20

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Solution

The fourth proportional to 5,125.20, 7,687.80 and 2,533.20 is: 3,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.20 : 7,687.80 = 2,533.20 : x
  2. Step 2: Convert to fraction form
    5,125.20/7,687.80 = 2,533.20/x
  3. Step 3: Cross multiply
    5,125.20x = 7,687.80 × 2,533.20
  4. Step 4: Simplify right side
    5,125.20x = 19,474,734.96
  5. Step 5: Solve for x
    x = 19,474,734.96/5,125.20
  6. Step 6: Final answer
    x = 3,799.80

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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.