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Finding the Fourth Proportional to 3,379.88, 4,664.45 and 1,888.00

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Solution

The fourth proportional to 3,379.88, 4,664.45 and 1,888.00 is: 2,605.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.88 : 4,664.45 = 1,888.00 : x
  2. Step 2: Convert to fraction form
    3,379.88/4,664.45 = 1,888.00/x
  3. Step 3: Cross multiply
    3,379.88x = 4,664.45 × 1,888.00
  4. Step 4: Simplify right side
    3,379.88x = 8,806,474.66
  5. Step 5: Solve for x
    x = 8,806,474.66/3,379.88
  6. Step 6: Final answer
    x = 2,605.56

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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.