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Finding the Fourth Proportional to 1,167.89, 1,611.09 and 794.88

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Solution

The fourth proportional to 1,167.89, 1,611.09 and 794.88 is: 1,096.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.89 : 1,611.09 = 794.88 : x
  2. Step 2: Convert to fraction form
    1,167.89/1,611.09 = 794.88/x
  3. Step 3: Cross multiply
    1,167.89x = 1,611.09 × 794.88
  4. Step 4: Simplify right side
    1,167.89x = 1,280,623.22
  5. Step 5: Solve for x
    x = 1,280,623.22/1,167.89
  6. Step 6: Final answer
    x = 1,096.53

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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.