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Finding the Fourth Proportional to 1,365.94, 2,048.64 and 1,136.31

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Solution

The fourth proportional to 1,365.94, 2,048.64 and 1,136.31 is: 1,704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.94 : 2,048.64 = 1,136.31 : x
  2. Step 2: Convert to fraction form
    1,365.94/2,048.64 = 1,136.31/x
  3. Step 3: Cross multiply
    1,365.94x = 2,048.64 × 1,136.31
  4. Step 4: Simplify right side
    1,365.94x = 2,327,890.12
  5. Step 5: Solve for x
    x = 2,327,890.12/1,365.94
  6. Step 6: Final answer
    x = 1,704.24

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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.