Home / 1,768.47-2,649.66-1,218.69

Finding the Fourth Proportional to 1,768.47, 2,649.66 and 1,218.69

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Solution

The fourth proportional to 1,768.47, 2,649.66 and 1,218.69 is: 1,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.47 : 2,649.66 = 1,218.69 : x
  2. Step 2: Convert to fraction form
    1,768.47/2,649.66 = 1,218.69/x
  3. Step 3: Cross multiply
    1,768.47x = 2,649.66 × 1,218.69
  4. Step 4: Simplify right side
    1,768.47x = 3,229,114.15
  5. Step 5: Solve for x
    x = 3,229,114.15/1,768.47
  6. Step 6: Final answer
    x = 1,825.94

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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.