Home / 1,872.78-2,802.21-1,176.19

Finding the Fourth Proportional to 1,872.78, 2,802.21 and 1,176.19

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Solution

The fourth proportional to 1,872.78, 2,802.21 and 1,176.19 is: 1,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.78 : 2,802.21 = 1,176.19 : x
  2. Step 2: Convert to fraction form
    1,872.78/2,802.21 = 1,176.19/x
  3. Step 3: Cross multiply
    1,872.78x = 2,802.21 × 1,176.19
  4. Step 4: Simplify right side
    1,872.78x = 3,295,917.37
  5. Step 5: Solve for x
    x = 3,295,917.37/1,872.78
  6. Step 6: Final answer
    x = 1,759.91

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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.