Home / 1,929.13-2,662.25-1,183.49

Finding the Fourth Proportional to 1,929.13, 2,662.25 and 1,183.49

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Solution

The fourth proportional to 1,929.13, 2,662.25 and 1,183.49 is: 1,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.13 : 2,662.25 = 1,183.49 : x
  2. Step 2: Convert to fraction form
    1,929.13/2,662.25 = 1,183.49/x
  3. Step 3: Cross multiply
    1,929.13x = 2,662.25 × 1,183.49
  4. Step 4: Simplify right side
    1,929.13x = 3,150,746.25
  5. Step 5: Solve for x
    x = 3,150,746.25/1,929.13
  6. Step 6: Final answer
    x = 1,633.25

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1.5x scale

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.