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Finding the Fourth Proportional to 2,037.80, 3,056.70 and 739.64

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Solution

The fourth proportional to 2,037.80, 3,056.70 and 739.64 is: 1,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037.80 : 3,056.70 = 739.64 : x
  2. Step 2: Convert to fraction form
    2,037.80/3,056.70 = 739.64/x
  3. Step 3: Cross multiply
    2,037.80x = 3,056.70 × 739.64
  4. Step 4: Simplify right side
    2,037.80x = 2,260,857.59
  5. Step 5: Solve for x
    x = 2,260,857.59/2,037.80
  6. Step 6: Final answer
    x = 1,109.46

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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.