Home / 1,290.44-1,932.99-630.33

Finding the Fourth Proportional to 1,290.44, 1,932.99 and 630.33

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Solution

The fourth proportional to 1,290.44, 1,932.99 and 630.33 is: 944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290.44 : 1,932.99 = 630.33 : x
  2. Step 2: Convert to fraction form
    1,290.44/1,932.99 = 630.33/x
  3. Step 3: Cross multiply
    1,290.44x = 1,932.99 × 630.33
  4. Step 4: Simplify right side
    1,290.44x = 1,218,411.97
  5. Step 5: Solve for x
    x = 1,218,411.97/1,290.44
  6. Step 6: Final answer
    x = 944.18

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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.