Home / 1,792.78-2,474.37-1,129.18

Finding the Fourth Proportional to 1,792.78, 2,474.37 and 1,129.18

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Solution

The fourth proportional to 1,792.78, 2,474.37 and 1,129.18 is: 1,558.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.78 : 2,474.37 = 1,129.18 : x
  2. Step 2: Convert to fraction form
    1,792.78/2,474.37 = 1,129.18/x
  3. Step 3: Cross multiply
    1,792.78x = 2,474.37 × 1,129.18
  4. Step 4: Simplify right side
    1,792.78x = 2,794,009.12
  5. Step 5: Solve for x
    x = 2,794,009.12/1,792.78
  6. Step 6: Final answer
    x = 1,558.48

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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.