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Finding the Fourth Proportional to 2,749.94, 4,125 and 802.16

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Solution

The fourth proportional to 2,749.94, 4,125 and 802.16 is: 1,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.94 : 4,125 = 802.16 : x
  2. Step 2: Convert to fraction form
    2,749.94/4,125 = 802.16/x
  3. Step 3: Cross multiply
    2,749.94x = 4,125 × 802.16
  4. Step 4: Simplify right side
    2,749.94x = 3,308,910
  5. Step 5: Solve for x
    x = 3,308,910/2,749.94
  6. Step 6: Final answer
    x = 1,203.27

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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.