Home / 2,779.83-3,839.54-2,198.07

Finding the Fourth Proportional to 2,779.83, 3,839.54 and 2,198.07

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Solution

The fourth proportional to 2,779.83, 3,839.54 and 2,198.07 is: 3,036.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.83 : 3,839.54 = 2,198.07 : x
  2. Step 2: Convert to fraction form
    2,779.83/3,839.54 = 2,198.07/x
  3. Step 3: Cross multiply
    2,779.83x = 3,839.54 × 2,198.07
  4. Step 4: Simplify right side
    2,779.83x = 8,439,566.70
  5. Step 5: Solve for x
    x = 8,439,566.70/2,779.83
  6. Step 6: Final answer
    x = 3,036.00

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Why These Related Problems?

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