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Finding the Fourth Proportional to 2,566.86, 3,850.28 and 619.05

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Solution

The fourth proportional to 2,566.86, 3,850.28 and 619.05 is: 928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.86 : 3,850.28 = 619.05 : x
  2. Step 2: Convert to fraction form
    2,566.86/3,850.28 = 619.05/x
  3. Step 3: Cross multiply
    2,566.86x = 3,850.28 × 619.05
  4. Step 4: Simplify right side
    2,566.86x = 2,383,515.83
  5. Step 5: Solve for x
    x = 2,383,515.83/2,566.86
  6. Step 6: Final answer
    x = 928.57

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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.