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Finding the Fourth Proportional to 1,365.31, 2,048.22 and 585.29

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Solution

The fourth proportional to 1,365.31, 2,048.22 and 585.29 is: 878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.31 : 2,048.22 = 585.29 : x
  2. Step 2: Convert to fraction form
    1,365.31/2,048.22 = 585.29/x
  3. Step 3: Cross multiply
    1,365.31x = 2,048.22 × 585.29
  4. Step 4: Simplify right side
    1,365.31x = 1,198,802.68
  5. Step 5: Solve for x
    x = 1,198,802.68/1,365.31
  6. Step 6: Final answer
    x = 878.04

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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.