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Finding the Fourth Proportional to 1,649.03, 2,470.77 and 918.18

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Solution

The fourth proportional to 1,649.03, 2,470.77 and 918.18 is: 1,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.03 : 2,470.77 = 918.18 : x
  2. Step 2: Convert to fraction form
    1,649.03/2,470.77 = 918.18/x
  3. Step 3: Cross multiply
    1,649.03x = 2,470.77 × 918.18
  4. Step 4: Simplify right side
    1,649.03x = 2,268,611.60
  5. Step 5: Solve for x
    x = 2,268,611.60/1,649.03
  6. Step 6: Final answer
    x = 1,375.73

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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.