Home / 1,887.33-2,831.01-1,106.79

Finding the Fourth Proportional to 1,887.33, 2,831.01 and 1,106.79

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Solution

The fourth proportional to 1,887.33, 2,831.01 and 1,106.79 is: 1,660.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.33 : 2,831.01 = 1,106.79 : x
  2. Step 2: Convert to fraction form
    1,887.33/2,831.01 = 1,106.79/x
  3. Step 3: Cross multiply
    1,887.33x = 2,831.01 × 1,106.79
  4. Step 4: Simplify right side
    1,887.33x = 3,133,336.32
  5. Step 5: Solve for x
    x = 3,133,336.32/1,887.33
  6. Step 6: Final answer
    x = 1,660.19

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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.