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Finding the Fourth Proportional to 2,802.84, 3,866.22 and 1,806.54

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Solution

The fourth proportional to 2,802.84, 3,866.22 and 1,806.54 is: 2,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.84 : 3,866.22 = 1,806.54 : x
  2. Step 2: Convert to fraction form
    2,802.84/3,866.22 = 1,806.54/x
  3. Step 3: Cross multiply
    2,802.84x = 3,866.22 × 1,806.54
  4. Step 4: Simplify right side
    2,802.84x = 6,984,481.08
  5. Step 5: Solve for x
    x = 6,984,481.08/2,802.84
  6. Step 6: Final answer
    x = 2,491.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.