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Finding the Fourth Proportional to 1,861.91, 2,793.48 and 937.03

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Solution

The fourth proportional to 1,861.91, 2,793.48 and 937.03 is: 1,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.91 : 2,793.48 = 937.03 : x
  2. Step 2: Convert to fraction form
    1,861.91/2,793.48 = 937.03/x
  3. Step 3: Cross multiply
    1,861.91x = 2,793.48 × 937.03
  4. Step 4: Simplify right side
    1,861.91x = 2,617,555.91
  5. Step 5: Solve for x
    x = 2,617,555.91/1,861.91
  6. Step 6: Final answer
    x = 1,405.84

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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.