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Finding the Fourth Proportional to 3,464, 4,780.32 and 1,892.22

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Solution

The fourth proportional to 3,464, 4,780.32 and 1,892.22 is: 2,611.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,464 : 4,780.32 = 1,892.22 : x
  2. Step 2: Convert to fraction form
    3,464/4,780.32 = 1,892.22/x
  3. Step 3: Cross multiply
    3,464x = 4,780.32 × 1,892.22
  4. Step 4: Simplify right side
    3,464x = 9,045,417.11
  5. Step 5: Solve for x
    x = 9,045,417.11/3,464
  6. Step 6: Final answer
    x = 2,611.26

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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.