Home / 1,084.58-1,625.75-823.86

Finding the Fourth Proportional to 1,084.58, 1,625.75 and 823.86

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Solution

The fourth proportional to 1,084.58, 1,625.75 and 823.86 is: 1,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.58 : 1,625.75 = 823.86 : x
  2. Step 2: Convert to fraction form
    1,084.58/1,625.75 = 823.86/x
  3. Step 3: Cross multiply
    1,084.58x = 1,625.75 × 823.86
  4. Step 4: Simplify right side
    1,084.58x = 1,339,390.40
  5. Step 5: Solve for x
    x = 1,339,390.40/1,084.58
  6. Step 6: Final answer
    x = 1,234.94

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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.