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Finding the Fourth Proportional to 2,384.63, 3,290.99 and 1,336.89

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Solution

The fourth proportional to 2,384.63, 3,290.99 and 1,336.89 is: 1,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.63 : 3,290.99 = 1,336.89 : x
  2. Step 2: Convert to fraction form
    2,384.63/3,290.99 = 1,336.89/x
  3. Step 3: Cross multiply
    2,384.63x = 3,290.99 × 1,336.89
  4. Step 4: Simplify right side
    2,384.63x = 4,399,684.94
  5. Step 5: Solve for x
    x = 4,399,684.94/2,384.63
  6. Step 6: Final answer
    x = 1,845.02

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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.