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Finding the Fourth Proportional to 1,201.76, 1,802.63 and 848.87

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Solution

The fourth proportional to 1,201.76, 1,802.63 and 848.87 is: 1,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.76 : 1,802.63 = 848.87 : x
  2. Step 2: Convert to fraction form
    1,201.76/1,802.63 = 848.87/x
  3. Step 3: Cross multiply
    1,201.76x = 1,802.63 × 848.87
  4. Step 4: Simplify right side
    1,201.76x = 1,530,185.27
  5. Step 5: Solve for x
    x = 1,530,185.27/1,201.76
  6. Step 6: Final answer
    x = 1,273.29

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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.