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Finding the Fourth Proportional to 1,194.70, 1,651.44 and 997.06

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Solution

The fourth proportional to 1,194.70, 1,651.44 and 997.06 is: 1,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.70 : 1,651.44 = 997.06 : x
  2. Step 2: Convert to fraction form
    1,194.70/1,651.44 = 997.06/x
  3. Step 3: Cross multiply
    1,194.70x = 1,651.44 × 997.06
  4. Step 4: Simplify right side
    1,194.70x = 1,646,584.77
  5. Step 5: Solve for x
    x = 1,646,584.77/1,194.70
  6. Step 6: Final answer
    x = 1,378.24

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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.