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Finding the Fourth Proportional to 2,882.82, 4,323.80 and 802.61

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Solution

The fourth proportional to 2,882.82, 4,323.80 and 802.61 is: 1,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.82 : 4,323.80 = 802.61 : x
  2. Step 2: Convert to fraction form
    2,882.82/4,323.80 = 802.61/x
  3. Step 3: Cross multiply
    2,882.82x = 4,323.80 × 802.61
  4. Step 4: Simplify right side
    2,882.82x = 3,470,299.49
  5. Step 5: Solve for x
    x = 3,470,299.49/2,882.82
  6. Step 6: Final answer
    x = 1,203.79

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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.