Home / 2,758.62-4,138.50-1,878.96

Finding the Fourth Proportional to 2,758.62, 4,138.50 and 1,878.96

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Solution

The fourth proportional to 2,758.62, 4,138.50 and 1,878.96 is: 2,818.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.62 : 4,138.50 = 1,878.96 : x
  2. Step 2: Convert to fraction form
    2,758.62/4,138.50 = 1,878.96/x
  3. Step 3: Cross multiply
    2,758.62x = 4,138.50 × 1,878.96
  4. Step 4: Simplify right side
    2,758.62x = 7,776,075.96
  5. Step 5: Solve for x
    x = 7,776,075.96/2,758.62
  6. Step 6: Final answer
    x = 2,818.83

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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.