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Finding the Fourth Proportional to 3,545, 5,318.60 and 1,236.52

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Solution

The fourth proportional to 3,545, 5,318.60 and 1,236.52 is: 1,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545 : 5,318.60 = 1,236.52 : x
  2. Step 2: Convert to fraction form
    3,545/5,318.60 = 1,236.52/x
  3. Step 3: Cross multiply
    3,545x = 5,318.60 × 1,236.52
  4. Step 4: Simplify right side
    3,545x = 6,576,555.27
  5. Step 5: Solve for x
    x = 6,576,555.27/3,545
  6. Step 6: Final answer
    x = 1,855.16

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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.