Home / 1,644.18-2,467.08-669.75

Finding the Fourth Proportional to 1,644.18, 2,467.08 and 669.75

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Solution

The fourth proportional to 1,644.18, 2,467.08 and 669.75 is: 1,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.18 : 2,467.08 = 669.75 : x
  2. Step 2: Convert to fraction form
    1,644.18/2,467.08 = 669.75/x
  3. Step 3: Cross multiply
    1,644.18x = 2,467.08 × 669.75
  4. Step 4: Simplify right side
    1,644.18x = 1,652,326.83
  5. Step 5: Solve for x
    x = 1,652,326.83/1,644.18
  6. Step 6: Final answer
    x = 1,004.95

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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.