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Finding the Fourth Proportional to 2,805.62, 4,208.90 and 1,050.57

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Solution

The fourth proportional to 2,805.62, 4,208.90 and 1,050.57 is: 1,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.62 : 4,208.90 = 1,050.57 : x
  2. Step 2: Convert to fraction form
    2,805.62/4,208.90 = 1,050.57/x
  3. Step 3: Cross multiply
    2,805.62x = 4,208.90 × 1,050.57
  4. Step 4: Simplify right side
    2,805.62x = 4,421,738.82
  5. Step 5: Solve for x
    x = 4,421,738.82/2,805.62
  6. Step 6: Final answer
    x = 1,576.03

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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.