Home / 1,945.63-2,684.88-1,199.66

Finding the Fourth Proportional to 1,945.63, 2,684.88 and 1,199.66

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Solution

The fourth proportional to 1,945.63, 2,684.88 and 1,199.66 is: 1,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.63 : 2,684.88 = 1,199.66 : x
  2. Step 2: Convert to fraction form
    1,945.63/2,684.88 = 1,199.66/x
  3. Step 3: Cross multiply
    1,945.63x = 2,684.88 × 1,199.66
  4. Step 4: Simplify right side
    1,945.63x = 3,220,949.88
  5. Step 5: Solve for x
    x = 3,220,949.88/1,945.63
  6. Step 6: Final answer
    x = 1,655.48

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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.