Home / 1,927.13-2,659.64-1,180.91

Finding the Fourth Proportional to 1,927.13, 2,659.64 and 1,180.91

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Solution

The fourth proportional to 1,927.13, 2,659.64 and 1,180.91 is: 1,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.13 : 2,659.64 = 1,180.91 : x
  2. Step 2: Convert to fraction form
    1,927.13/2,659.64 = 1,180.91/x
  3. Step 3: Cross multiply
    1,927.13x = 2,659.64 × 1,180.91
  4. Step 4: Simplify right side
    1,927.13x = 3,140,796.22
  5. Step 5: Solve for x
    x = 3,140,796.22/1,927.13
  6. Step 6: Final answer
    x = 1,629.78

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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.