Home / 1,668.02-2,311.61-1,644.53

Finding the Fourth Proportional to 1,668.02, 2,311.61 and 1,644.53

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Solution

The fourth proportional to 1,668.02, 2,311.61 and 1,644.53 is: 2,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.02 : 2,311.61 = 1,644.53 : x
  2. Step 2: Convert to fraction form
    1,668.02/2,311.61 = 1,644.53/x
  3. Step 3: Cross multiply
    1,668.02x = 2,311.61 × 1,644.53
  4. Step 4: Simplify right side
    1,668.02x = 3,801,511.99
  5. Step 5: Solve for x
    x = 3,801,511.99/1,668.02
  6. Step 6: Final answer
    x = 2,279.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.