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Finding the Fourth Proportional to 2,164.44, 3,246.51 and 864.99

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Solution

The fourth proportional to 2,164.44, 3,246.51 and 864.99 is: 1,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.44 : 3,246.51 = 864.99 : x
  2. Step 2: Convert to fraction form
    2,164.44/3,246.51 = 864.99/x
  3. Step 3: Cross multiply
    2,164.44x = 3,246.51 × 864.99
  4. Step 4: Simplify right side
    2,164.44x = 2,808,198.68
  5. Step 5: Solve for x
    x = 2,808,198.68/2,164.44
  6. Step 6: Final answer
    x = 1,297.43

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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.