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Finding the Fourth Proportional to 3,650.84, 5,476.31 and 1,053.78

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Solution

The fourth proportional to 3,650.84, 5,476.31 and 1,053.78 is: 1,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.84 : 5,476.31 = 1,053.78 : x
  2. Step 2: Convert to fraction form
    3,650.84/5,476.31 = 1,053.78/x
  3. Step 3: Cross multiply
    3,650.84x = 5,476.31 × 1,053.78
  4. Step 4: Simplify right side
    3,650.84x = 5,770,820.68
  5. Step 5: Solve for x
    x = 5,770,820.68/3,650.84
  6. Step 6: Final answer
    x = 1,580.69

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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.