Home / 3,161.12-4,362.32-1,744.79

Finding the Fourth Proportional to 3,161.12, 4,362.32 and 1,744.79

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Solution

The fourth proportional to 3,161.12, 4,362.32 and 1,744.79 is: 2,407.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.12 : 4,362.32 = 1,744.79 : x
  2. Step 2: Convert to fraction form
    3,161.12/4,362.32 = 1,744.79/x
  3. Step 3: Cross multiply
    3,161.12x = 4,362.32 × 1,744.79
  4. Step 4: Simplify right side
    3,161.12x = 7,611,314.86
  5. Step 5: Solve for x
    x = 7,611,314.86/3,161.12
  6. Step 6: Final answer
    x = 2,407.79

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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.