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Finding the Fourth Proportional to 1,891.64, 2,837.46 and 1,648.34

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Solution

The fourth proportional to 1,891.64, 2,837.46 and 1,648.34 is: 2,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.64 : 2,837.46 = 1,648.34 : x
  2. Step 2: Convert to fraction form
    1,891.64/2,837.46 = 1,648.34/x
  3. Step 3: Cross multiply
    1,891.64x = 2,837.46 × 1,648.34
  4. Step 4: Simplify right side
    1,891.64x = 4,677,098.82
  5. Step 5: Solve for x
    x = 4,677,098.82/1,891.64
  6. Step 6: Final answer
    x = 2,472.51

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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.