Home / 1,927.92-2,659.50-1,181.28

Finding the Fourth Proportional to 1,927.92, 2,659.50 and 1,181.28

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Solution

The fourth proportional to 1,927.92, 2,659.50 and 1,181.28 is: 1,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.92 : 2,659.50 = 1,181.28 : x
  2. Step 2: Convert to fraction form
    1,927.92/2,659.50 = 1,181.28/x
  3. Step 3: Cross multiply
    1,927.92x = 2,659.50 × 1,181.28
  4. Step 4: Simplify right side
    1,927.92x = 3,141,614.16
  5. Step 5: Solve for x
    x = 3,141,614.16/1,927.92
  6. Step 6: Final answer
    x = 1,629.54

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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.