Home / 2,779.74-3,836.75-1,718.42

Finding the Fourth Proportional to 2,779.74, 3,836.75 and 1,718.42

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Solution

The fourth proportional to 2,779.74, 3,836.75 and 1,718.42 is: 2,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.74 : 3,836.75 = 1,718.42 : x
  2. Step 2: Convert to fraction form
    2,779.74/3,836.75 = 1,718.42/x
  3. Step 3: Cross multiply
    2,779.74x = 3,836.75 × 1,718.42
  4. Step 4: Simplify right side
    2,779.74x = 6,593,120.16
  5. Step 5: Solve for x
    x = 6,593,120.16/2,779.74
  6. Step 6: Final answer
    x = 2,371.85

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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.