Home / 1,787.55-2,467.46-1,115.06

Finding the Fourth Proportional to 1,787.55, 2,467.46 and 1,115.06

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Solution

The fourth proportional to 1,787.55, 2,467.46 and 1,115.06 is: 1,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.55 : 2,467.46 = 1,115.06 : x
  2. Step 2: Convert to fraction form
    1,787.55/2,467.46 = 1,115.06/x
  3. Step 3: Cross multiply
    1,787.55x = 2,467.46 × 1,115.06
  4. Step 4: Simplify right side
    1,787.55x = 2,751,348.04
  5. Step 5: Solve for x
    x = 2,751,348.04/1,787.55
  6. Step 6: Final answer
    x = 1,539.17

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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.