Home / 2,620.21-3,614.84-1,675.78

Finding the Fourth Proportional to 2,620.21, 3,614.84 and 1,675.78

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Solution

The fourth proportional to 2,620.21, 3,614.84 and 1,675.78 is: 2,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.21 : 3,614.84 = 1,675.78 : x
  2. Step 2: Convert to fraction form
    2,620.21/3,614.84 = 1,675.78/x
  3. Step 3: Cross multiply
    2,620.21x = 3,614.84 × 1,675.78
  4. Step 4: Simplify right side
    2,620.21x = 6,057,679.00
  5. Step 5: Solve for x
    x = 6,057,679.00/2,620.21
  6. Step 6: Final answer
    x = 2,311.91

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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.