Home / 1,881.32-2,822.07-1,188.56

Finding the Fourth Proportional to 1,881.32, 2,822.07 and 1,188.56

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Solution

The fourth proportional to 1,881.32, 2,822.07 and 1,188.56 is: 1,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.32 : 2,822.07 = 1,188.56 : x
  2. Step 2: Convert to fraction form
    1,881.32/2,822.07 = 1,188.56/x
  3. Step 3: Cross multiply
    1,881.32x = 2,822.07 × 1,188.56
  4. Step 4: Simplify right side
    1,881.32x = 3,354,185.41
  5. Step 5: Solve for x
    x = 3,354,185.41/1,881.32
  6. Step 6: Final answer
    x = 1,782.89

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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.