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Finding the Fourth Proportional to 1,774.23, 2,659.56 and 994.60

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Solution

The fourth proportional to 1,774.23, 2,659.56 and 994.60 is: 1,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.23 : 2,659.56 = 994.60 : x
  2. Step 2: Convert to fraction form
    1,774.23/2,659.56 = 994.60/x
  3. Step 3: Cross multiply
    1,774.23x = 2,659.56 × 994.60
  4. Step 4: Simplify right side
    1,774.23x = 2,645,198.38
  5. Step 5: Solve for x
    x = 2,645,198.38/1,774.23
  6. Step 6: Final answer
    x = 1,490.90

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1.5x scale

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.