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Finding the Fourth Proportional to 1,159.27, 1,737.44 and 828.48

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Solution

The fourth proportional to 1,159.27, 1,737.44 and 828.48 is: 1,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.27 : 1,737.44 = 828.48 : x
  2. Step 2: Convert to fraction form
    1,159.27/1,737.44 = 828.48/x
  3. Step 3: Cross multiply
    1,159.27x = 1,737.44 × 828.48
  4. Step 4: Simplify right side
    1,159.27x = 1,439,439.77
  5. Step 5: Solve for x
    x = 1,439,439.77/1,159.27
  6. Step 6: Final answer
    x = 1,241.68

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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.