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Finding the Fourth Proportional to 1,348.89, 1,861.46 and 759.44

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Solution

The fourth proportional to 1,348.89, 1,861.46 and 759.44 is: 1,048.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.89 : 1,861.46 = 759.44 : x
  2. Step 2: Convert to fraction form
    1,348.89/1,861.46 = 759.44/x
  3. Step 3: Cross multiply
    1,348.89x = 1,861.46 × 759.44
  4. Step 4: Simplify right side
    1,348.89x = 1,413,654.08
  5. Step 5: Solve for x
    x = 1,413,654.08/1,348.89
  6. Step 6: Final answer
    x = 1,048.01

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1.5x scale

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.