Home / 7,431.81-11,152.44-2,751.33

Finding the Fourth Proportional to 7,431.81, 11,152.44 and 2,751.33

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Solution

The fourth proportional to 7,431.81, 11,152.44 and 2,751.33 is: 4,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.81 : 11,152.44 = 2,751.33 : x
  2. Step 2: Convert to fraction form
    7,431.81/11,152.44 = 2,751.33/x
  3. Step 3: Cross multiply
    7,431.81x = 11,152.44 × 2,751.33
  4. Step 4: Simplify right side
    7,431.81x = 30,684,042.75
  5. Step 5: Solve for x
    x = 30,684,042.75/7,431.81
  6. Step 6: Final answer
    x = 4,128.74

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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.