Home / 1,787.25-2,465.37-1,122.96

Finding the Fourth Proportional to 1,787.25, 2,465.37 and 1,122.96

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Solution

The fourth proportional to 1,787.25, 2,465.37 and 1,122.96 is: 1,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.25 : 2,465.37 = 1,122.96 : x
  2. Step 2: Convert to fraction form
    1,787.25/2,465.37 = 1,122.96/x
  3. Step 3: Cross multiply
    1,787.25x = 2,465.37 × 1,122.96
  4. Step 4: Simplify right side
    1,787.25x = 2,768,511.90
  5. Step 5: Solve for x
    x = 2,768,511.90/1,787.25
  6. Step 6: Final answer
    x = 1,549.03

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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.