Home / 1,787.06-2,679.08-800.18

Finding the Fourth Proportional to 1,787.06, 2,679.08 and 800.18

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Solution

The fourth proportional to 1,787.06, 2,679.08 and 800.18 is: 1,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.06 : 2,679.08 = 800.18 : x
  2. Step 2: Convert to fraction form
    1,787.06/2,679.08 = 800.18/x
  3. Step 3: Cross multiply
    1,787.06x = 2,679.08 × 800.18
  4. Step 4: Simplify right side
    1,787.06x = 2,143,738.88
  5. Step 5: Solve for x
    x = 2,143,738.88/1,787.06
  6. Step 6: Final answer
    x = 1,199.59

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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.