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Finding the Fourth Proportional to 3,640.04, 5,459.94 and 1,042.98

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Solution

The fourth proportional to 3,640.04, 5,459.94 and 1,042.98 is: 1,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.04 : 5,459.94 = 1,042.98 : x
  2. Step 2: Convert to fraction form
    3,640.04/5,459.94 = 1,042.98/x
  3. Step 3: Cross multiply
    3,640.04x = 5,459.94 × 1,042.98
  4. Step 4: Simplify right side
    3,640.04x = 5,694,608.22
  5. Step 5: Solve for x
    x = 5,694,608.22/3,640.04
  6. Step 6: Final answer
    x = 1,564.44

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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.