Home / 5,091.44-7,636.79-1,581.36

Finding the Fourth Proportional to 5,091.44, 7,636.79 and 1,581.36

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Solution

The fourth proportional to 5,091.44, 7,636.79 and 1,581.36 is: 2,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.44 : 7,636.79 = 1,581.36 : x
  2. Step 2: Convert to fraction form
    5,091.44/7,636.79 = 1,581.36/x
  3. Step 3: Cross multiply
    5,091.44x = 7,636.79 × 1,581.36
  4. Step 4: Simplify right side
    5,091.44x = 12,076,506.33
  5. Step 5: Solve for x
    x = 12,076,506.33/5,091.44
  6. Step 6: Final answer
    x = 2,371.93

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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.