Home / 2,085.88-2,877.78-1,299.64

Finding the Fourth Proportional to 2,085.88, 2,877.78 and 1,299.64

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Solution

The fourth proportional to 2,085.88, 2,877.78 and 1,299.64 is: 1,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.88 : 2,877.78 = 1,299.64 : x
  2. Step 2: Convert to fraction form
    2,085.88/2,877.78 = 1,299.64/x
  3. Step 3: Cross multiply
    2,085.88x = 2,877.78 × 1,299.64
  4. Step 4: Simplify right side
    2,085.88x = 3,740,078.00
  5. Step 5: Solve for x
    x = 3,740,078.00/2,085.88
  6. Step 6: Final answer
    x = 1,793.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.