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Finding the Fourth Proportional to 1,808.43, 2,709.01 and 1,370.43

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Solution

The fourth proportional to 1,808.43, 2,709.01 and 1,370.43 is: 2,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.43 : 2,709.01 = 1,370.43 : x
  2. Step 2: Convert to fraction form
    1,808.43/2,709.01 = 1,370.43/x
  3. Step 3: Cross multiply
    1,808.43x = 2,709.01 × 1,370.43
  4. Step 4: Simplify right side
    1,808.43x = 3,712,501.72
  5. Step 5: Solve for x
    x = 3,712,501.72/1,808.43
  6. Step 6: Final answer
    x = 2,052.89

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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.