Home / 1,638.44-2,261.34-1,048.96

Finding the Fourth Proportional to 1,638.44, 2,261.34 and 1,048.96

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Solution

The fourth proportional to 1,638.44, 2,261.34 and 1,048.96 is: 1,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.44 : 2,261.34 = 1,048.96 : x
  2. Step 2: Convert to fraction form
    1,638.44/2,261.34 = 1,048.96/x
  3. Step 3: Cross multiply
    1,638.44x = 2,261.34 × 1,048.96
  4. Step 4: Simplify right side
    1,638.44x = 2,372,055.21
  5. Step 5: Solve for x
    x = 2,372,055.21/1,638.44
  6. Step 6: Final answer
    x = 1,447.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.