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Finding the Fourth Proportional to 3,608.53, 5,412.80 and 1,011.46

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Solution

The fourth proportional to 3,608.53, 5,412.80 and 1,011.46 is: 1,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.53 : 5,412.80 = 1,011.46 : x
  2. Step 2: Convert to fraction form
    3,608.53/5,412.80 = 1,011.46/x
  3. Step 3: Cross multiply
    3,608.53x = 5,412.80 × 1,011.46
  4. Step 4: Simplify right side
    3,608.53x = 5,474,830.69
  5. Step 5: Solve for x
    x = 5,474,830.69/3,608.53
  6. Step 6: Final answer
    x = 1,517.19

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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.