Home / 3,100.67-4,278.96-1,684.37

Finding the Fourth Proportional to 3,100.67, 4,278.96 and 1,684.37

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Solution

The fourth proportional to 3,100.67, 4,278.96 and 1,684.37 is: 2,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.67 : 4,278.96 = 1,684.37 : x
  2. Step 2: Convert to fraction form
    3,100.67/4,278.96 = 1,684.37/x
  3. Step 3: Cross multiply
    3,100.67x = 4,278.96 × 1,684.37
  4. Step 4: Simplify right side
    3,100.67x = 7,207,362.55
  5. Step 5: Solve for x
    x = 7,207,362.55/3,100.67
  6. Step 6: Final answer
    x = 2,324.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.