Home / 1,923.96-2,884.05-1,221.51

Finding the Fourth Proportional to 1,923.96, 2,884.05 and 1,221.51

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Solution

The fourth proportional to 1,923.96, 2,884.05 and 1,221.51 is: 1,831.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.96 : 2,884.05 = 1,221.51 : x
  2. Step 2: Convert to fraction form
    1,923.96/2,884.05 = 1,221.51/x
  3. Step 3: Cross multiply
    1,923.96x = 2,884.05 × 1,221.51
  4. Step 4: Simplify right side
    1,923.96x = 3,522,895.92
  5. Step 5: Solve for x
    x = 3,522,895.92/1,923.96
  6. Step 6: Final answer
    x = 1,831.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.