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Finding the Fourth Proportional to 1,337.19, 1,845.41 and 739.68

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Solution

The fourth proportional to 1,337.19, 1,845.41 and 739.68 is: 1,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.19 : 1,845.41 = 739.68 : x
  2. Step 2: Convert to fraction form
    1,337.19/1,845.41 = 739.68/x
  3. Step 3: Cross multiply
    1,337.19x = 1,845.41 × 739.68
  4. Step 4: Simplify right side
    1,337.19x = 1,365,012.87
  5. Step 5: Solve for x
    x = 1,365,012.87/1,337.19
  6. Step 6: Final answer
    x = 1,020.81

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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.