Home / 2,118.35-2,922.97-1,411.25

Finding the Fourth Proportional to 2,118.35, 2,922.97 and 1,411.25

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Solution

The fourth proportional to 2,118.35, 2,922.97 and 1,411.25 is: 1,947.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.35 : 2,922.97 = 1,411.25 : x
  2. Step 2: Convert to fraction form
    2,118.35/2,922.97 = 1,411.25/x
  3. Step 3: Cross multiply
    2,118.35x = 2,922.97 × 1,411.25
  4. Step 4: Simplify right side
    2,118.35x = 4,125,028.18
  5. Step 5: Solve for x
    x = 4,125,028.18/2,118.35
  6. Step 6: Final answer
    x = 1,947.29

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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.