Home / 1,644.12-2,466.06-669.96

Finding the Fourth Proportional to 1,644.12, 2,466.06 and 669.96

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Solution

The fourth proportional to 1,644.12, 2,466.06 and 669.96 is: 1,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.12 : 2,466.06 = 669.96 : x
  2. Step 2: Convert to fraction form
    1,644.12/2,466.06 = 669.96/x
  3. Step 3: Cross multiply
    1,644.12x = 2,466.06 × 669.96
  4. Step 4: Simplify right side
    1,644.12x = 1,652,161.56
  5. Step 5: Solve for x
    x = 1,652,161.56/1,644.12
  6. Step 6: Final answer
    x = 1,004.89

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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.