Home / 6,490.19-9,736.64-2,107.29

Finding the Fourth Proportional to 6,490.19, 9,736.64 and 2,107.29

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Solution

The fourth proportional to 6,490.19, 9,736.64 and 2,107.29 is: 3,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.19 : 9,736.64 = 2,107.29 : x
  2. Step 2: Convert to fraction form
    6,490.19/9,736.64 = 2,107.29/x
  3. Step 3: Cross multiply
    6,490.19x = 9,736.64 × 2,107.29
  4. Step 4: Simplify right side
    6,490.19x = 20,517,913.57
  5. Step 5: Solve for x
    x = 20,517,913.57/6,490.19
  6. Step 6: Final answer
    x = 3,161.38

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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.