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Finding the Fourth Proportional to 1,813.42, 2,502.60 and 1,027.72

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Solution

The fourth proportional to 1,813.42, 2,502.60 and 1,027.72 is: 1,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.42 : 2,502.60 = 1,027.72 : x
  2. Step 2: Convert to fraction form
    1,813.42/2,502.60 = 1,027.72/x
  3. Step 3: Cross multiply
    1,813.42x = 2,502.60 × 1,027.72
  4. Step 4: Simplify right side
    1,813.42x = 2,571,972.07
  5. Step 5: Solve for x
    x = 2,571,972.07/1,813.42
  6. Step 6: Final answer
    x = 1,418.30

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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.