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Finding the Fourth Proportional to 1,367.56, 2,037.56 and 1,318.12

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Solution

The fourth proportional to 1,367.56, 2,037.56 and 1,318.12 is: 1,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.56 : 2,037.56 = 1,318.12 : x
  2. Step 2: Convert to fraction form
    1,367.56/2,037.56 = 1,318.12/x
  3. Step 3: Cross multiply
    1,367.56x = 2,037.56 × 1,318.12
  4. Step 4: Simplify right side
    1,367.56x = 2,685,748.36
  5. Step 5: Solve for x
    x = 2,685,748.36/1,367.56
  6. Step 6: Final answer
    x = 1,963.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.