Home / 1,109.31-1,664.07-532.19

Finding the Fourth Proportional to 1,109.31, 1,664.07 and 532.19

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Solution

The fourth proportional to 1,109.31, 1,664.07 and 532.19 is: 798.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109.31 : 1,664.07 = 532.19 : x
  2. Step 2: Convert to fraction form
    1,109.31/1,664.07 = 532.19/x
  3. Step 3: Cross multiply
    1,109.31x = 1,664.07 × 532.19
  4. Step 4: Simplify right side
    1,109.31x = 885,601.41
  5. Step 5: Solve for x
    x = 885,601.41/1,109.31
  6. Step 6: Final answer
    x = 798.34

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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.