Home / 4,791.12-7,186.74-1,328.37

Finding the Fourth Proportional to 4,791.12, 7,186.74 and 1,328.37

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Solution

The fourth proportional to 4,791.12, 7,186.74 and 1,328.37 is: 1,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.12 : 7,186.74 = 1,328.37 : x
  2. Step 2: Convert to fraction form
    4,791.12/7,186.74 = 1,328.37/x
  3. Step 3: Cross multiply
    4,791.12x = 7,186.74 × 1,328.37
  4. Step 4: Simplify right side
    4,791.12x = 9,546,649.81
  5. Step 5: Solve for x
    x = 9,546,649.81/4,791.12
  6. Step 6: Final answer
    x = 1,992.57

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1.5x scale

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.