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Finding the Fourth Proportional to 2,763.70, 3,814.20 and 1,584.98

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Solution

The fourth proportional to 2,763.70, 3,814.20 and 1,584.98 is: 2,187.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.70 : 3,814.20 = 1,584.98 : x
  2. Step 2: Convert to fraction form
    2,763.70/3,814.20 = 1,584.98/x
  3. Step 3: Cross multiply
    2,763.70x = 3,814.20 × 1,584.98
  4. Step 4: Simplify right side
    2,763.70x = 6,045,430.72
  5. Step 5: Solve for x
    x = 6,045,430.72/2,763.70
  6. Step 6: Final answer
    x = 2,187.44

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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.