Home / 1,929.56-2,662.65-1,183.55

Finding the Fourth Proportional to 1,929.56, 2,662.65 and 1,183.55

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Solution

The fourth proportional to 1,929.56, 2,662.65 and 1,183.55 is: 1,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.56 : 2,662.65 = 1,183.55 : x
  2. Step 2: Convert to fraction form
    1,929.56/2,662.65 = 1,183.55/x
  3. Step 3: Cross multiply
    1,929.56x = 2,662.65 × 1,183.55
  4. Step 4: Simplify right side
    1,929.56x = 3,151,366.09
  5. Step 5: Solve for x
    x = 3,151,366.09/1,929.56
  6. Step 6: Final answer
    x = 1,633.21

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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.