Home / 2,938.03-4,405.76-1,112.75

Finding the Fourth Proportional to 2,938.03, 4,405.76 and 1,112.75

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Solution

The fourth proportional to 2,938.03, 4,405.76 and 1,112.75 is: 1,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.03 : 4,405.76 = 1,112.75 : x
  2. Step 2: Convert to fraction form
    2,938.03/4,405.76 = 1,112.75/x
  3. Step 3: Cross multiply
    2,938.03x = 4,405.76 × 1,112.75
  4. Step 4: Simplify right side
    2,938.03x = 4,902,509.44
  5. Step 5: Solve for x
    x = 4,902,509.44/2,938.03
  6. Step 6: Final answer
    x = 1,668.64

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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.