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Finding the Fourth Proportional to 2,263.56, 3,394.96 and 619.82

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Solution

The fourth proportional to 2,263.56, 3,394.96 and 619.82 is: 929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.56 : 3,394.96 = 619.82 : x
  2. Step 2: Convert to fraction form
    2,263.56/3,394.96 = 619.82/x
  3. Step 3: Cross multiply
    2,263.56x = 3,394.96 × 619.82
  4. Step 4: Simplify right side
    2,263.56x = 2,104,261.80
  5. Step 5: Solve for x
    x = 2,104,261.80/2,263.56
  6. Step 6: Final answer
    x = 929.62

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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.