Home / 2,626.90-3,939.77-1,687.03

Finding the Fourth Proportional to 2,626.90, 3,939.77 and 1,687.03

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Solution

The fourth proportional to 2,626.90, 3,939.77 and 1,687.03 is: 2,530.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.90 : 3,939.77 = 1,687.03 : x
  2. Step 2: Convert to fraction form
    2,626.90/3,939.77 = 1,687.03/x
  3. Step 3: Cross multiply
    2,626.90x = 3,939.77 × 1,687.03
  4. Step 4: Simplify right side
    2,626.90x = 6,646,504.55
  5. Step 5: Solve for x
    x = 6,646,504.55/2,626.90
  6. Step 6: Final answer
    x = 2,530.17

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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.