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Finding the Fourth Proportional to 1,174.94, 1,617.73 and 997.54

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Solution

The fourth proportional to 1,174.94, 1,617.73 and 997.54 is: 1,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.94 : 1,617.73 = 997.54 : x
  2. Step 2: Convert to fraction form
    1,174.94/1,617.73 = 997.54/x
  3. Step 3: Cross multiply
    1,174.94x = 1,617.73 × 997.54
  4. Step 4: Simplify right side
    1,174.94x = 1,613,743.85
  5. Step 5: Solve for x
    x = 1,613,743.85/1,174.94
  6. Step 6: Final answer
    x = 1,373.47

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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.