Home / 1,644.42-2,472.33-1,322.06

Finding the Fourth Proportional to 1,644.42, 2,472.33 and 1,322.06

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Solution

The fourth proportional to 1,644.42, 2,472.33 and 1,322.06 is: 1,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.42 : 2,472.33 = 1,322.06 : x
  2. Step 2: Convert to fraction form
    1,644.42/2,472.33 = 1,322.06/x
  3. Step 3: Cross multiply
    1,644.42x = 2,472.33 × 1,322.06
  4. Step 4: Simplify right side
    1,644.42x = 3,268,568.60
  5. Step 5: Solve for x
    x = 3,268,568.60/1,644.42
  6. Step 6: Final answer
    x = 1,987.67

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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.