Home / 6,490.16-9,736.61-2,107.28

Finding the Fourth Proportional to 6,490.16, 9,736.61 and 2,107.28

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Solution

The fourth proportional to 6,490.16, 9,736.61 and 2,107.28 is: 3,161.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.16 : 9,736.61 = 2,107.28 : x
  2. Step 2: Convert to fraction form
    6,490.16/9,736.61 = 2,107.28/x
  3. Step 3: Cross multiply
    6,490.16x = 9,736.61 × 2,107.28
  4. Step 4: Simplify right side
    6,490.16x = 20,517,763.52
  5. Step 5: Solve for x
    x = 20,517,763.52/6,490.16
  6. Step 6: Final answer
    x = 3,161.36

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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.