Home / 6,490.38-9,736.77-2,107.26

Finding the Fourth Proportional to 6,490.38, 9,736.77 and 2,107.26

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Solution

The fourth proportional to 6,490.38, 9,736.77 and 2,107.26 is: 3,161.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.38 : 9,736.77 = 2,107.26 : x
  2. Step 2: Convert to fraction form
    6,490.38/9,736.77 = 2,107.26/x
  3. Step 3: Cross multiply
    6,490.38x = 9,736.77 × 2,107.26
  4. Step 4: Simplify right side
    6,490.38x = 20,517,905.95
  5. Step 5: Solve for x
    x = 20,517,905.95/6,490.38
  6. Step 6: Final answer
    x = 3,161.28

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1.5x scale

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.