Home / 1,787.51-2,680.99-633.26

Finding the Fourth Proportional to 1,787.51, 2,680.99 and 633.26

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Solution

The fourth proportional to 1,787.51, 2,680.99 and 633.26 is: 949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.51 : 2,680.99 = 633.26 : x
  2. Step 2: Convert to fraction form
    1,787.51/2,680.99 = 633.26/x
  3. Step 3: Cross multiply
    1,787.51x = 2,680.99 × 633.26
  4. Step 4: Simplify right side
    1,787.51x = 1,697,763.73
  5. Step 5: Solve for x
    x = 1,697,763.73/1,787.51
  6. Step 6: Final answer
    x = 949.79

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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.