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Finding the Fourth Proportional to 1,158.24, 1,736.73 and 793.12

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Solution

The fourth proportional to 1,158.24, 1,736.73 and 793.12 is: 1,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.24 : 1,736.73 = 793.12 : x
  2. Step 2: Convert to fraction form
    1,158.24/1,736.73 = 793.12/x
  3. Step 3: Cross multiply
    1,158.24x = 1,736.73 × 793.12
  4. Step 4: Simplify right side
    1,158.24x = 1,377,431.33
  5. Step 5: Solve for x
    x = 1,377,431.33/1,158.24
  6. Step 6: Final answer
    x = 1,189.25

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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.