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Finding the Fourth Proportional to 1,651.94, 2,278.37 and 1,404.08

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Solution

The fourth proportional to 1,651.94, 2,278.37 and 1,404.08 is: 1,936.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.94 : 2,278.37 = 1,404.08 : x
  2. Step 2: Convert to fraction form
    1,651.94/2,278.37 = 1,404.08/x
  3. Step 3: Cross multiply
    1,651.94x = 2,278.37 × 1,404.08
  4. Step 4: Simplify right side
    1,651.94x = 3,199,006.73
  5. Step 5: Solve for x
    x = 3,199,006.73/1,651.94
  6. Step 6: Final answer
    x = 1,936.52

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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.