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Finding the Fourth Proportional to 2,644.85, 3,649.60 and 1,465.80

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Solution

The fourth proportional to 2,644.85, 3,649.60 and 1,465.80 is: 2,022.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.85 : 3,649.60 = 1,465.80 : x
  2. Step 2: Convert to fraction form
    2,644.85/3,649.60 = 1,465.80/x
  3. Step 3: Cross multiply
    2,644.85x = 3,649.60 × 1,465.80
  4. Step 4: Simplify right side
    2,644.85x = 5,349,583.68
  5. Step 5: Solve for x
    x = 5,349,583.68/2,644.85
  6. Step 6: Final answer
    x = 2,022.64

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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.