Home / 1,787.50-2,682.69-922.06

Finding the Fourth Proportional to 1,787.50, 2,682.69 and 922.06

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Solution

The fourth proportional to 1,787.50, 2,682.69 and 922.06 is: 1,383.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.50 : 2,682.69 = 922.06 : x
  2. Step 2: Convert to fraction form
    1,787.50/2,682.69 = 922.06/x
  3. Step 3: Cross multiply
    1,787.50x = 2,682.69 × 922.06
  4. Step 4: Simplify right side
    1,787.50x = 2,473,601.14
  5. Step 5: Solve for x
    x = 2,473,601.14/1,787.50
  6. Step 6: Final answer
    x = 1,383.83

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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.