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Finding the Fourth Proportional to 1,846, 2,544.64 and 1,215.44

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Solution

The fourth proportional to 1,846, 2,544.64 and 1,215.44 is: 1,675.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,846 : 2,544.64 = 1,215.44 : x
  2. Step 2: Convert to fraction form
    1,846/2,544.64 = 1,215.44/x
  3. Step 3: Cross multiply
    1,846x = 2,544.64 × 1,215.44
  4. Step 4: Simplify right side
    1,846x = 3,092,857.24
  5. Step 5: Solve for x
    x = 3,092,857.24/1,846
  6. Step 6: Final answer
    x = 1,675.44

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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.