Home / 4,742.80-7,119.60-2,796.10

Finding the Fourth Proportional to 4,742.80, 7,119.60 and 2,796.10

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Solution

The fourth proportional to 4,742.80, 7,119.60 and 2,796.10 is: 4,197.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.80 : 7,119.60 = 2,796.10 : x
  2. Step 2: Convert to fraction form
    4,742.80/7,119.60 = 2,796.10/x
  3. Step 3: Cross multiply
    4,742.80x = 7,119.60 × 2,796.10
  4. Step 4: Simplify right side
    4,742.80x = 19,907,113.56
  5. Step 5: Solve for x
    x = 19,907,113.56/4,742.80
  6. Step 6: Final answer
    x = 4,197.33

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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.