Home / 2,779.90-3,853.84-2,631.94

Finding the Fourth Proportional to 2,779.90, 3,853.84 and 2,631.94

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Solution

The fourth proportional to 2,779.90, 3,853.84 and 2,631.94 is: 3,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.90 : 3,853.84 = 2,631.94 : x
  2. Step 2: Convert to fraction form
    2,779.90/3,853.84 = 2,631.94/x
  3. Step 3: Cross multiply
    2,779.90x = 3,853.84 × 2,631.94
  4. Step 4: Simplify right side
    2,779.90x = 10,143,075.65
  5. Step 5: Solve for x
    x = 10,143,075.65/2,779.90
  6. Step 6: Final answer
    x = 3,648.72

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.