Home / 1,644.21-2,268.66-1,146.67

Finding the Fourth Proportional to 1,644.21, 2,268.66 and 1,146.67

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Solution

The fourth proportional to 1,644.21, 2,268.66 and 1,146.67 is: 1,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.21 : 2,268.66 = 1,146.67 : x
  2. Step 2: Convert to fraction form
    1,644.21/2,268.66 = 1,146.67/x
  3. Step 3: Cross multiply
    1,644.21x = 2,268.66 × 1,146.67
  4. Step 4: Simplify right side
    1,644.21x = 2,601,398.69
  5. Step 5: Solve for x
    x = 2,601,398.69/1,644.21
  6. Step 6: Final answer
    x = 1,582.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.