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Finding the Fourth Proportional to 1,916.80, 2,871.07 and 1,093.03

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Solution

The fourth proportional to 1,916.80, 2,871.07 and 1,093.03 is: 1,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.80 : 2,871.07 = 1,093.03 : x
  2. Step 2: Convert to fraction form
    1,916.80/2,871.07 = 1,093.03/x
  3. Step 3: Cross multiply
    1,916.80x = 2,871.07 × 1,093.03
  4. Step 4: Simplify right side
    1,916.80x = 3,138,155.73
  5. Step 5: Solve for x
    x = 3,138,155.73/1,916.80
  6. Step 6: Final answer
    x = 1,637.19

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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.