Home / 3,313.12-4,571.84-1,986.32

Finding the Fourth Proportional to 3,313.12, 4,571.84 and 1,986.32

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Solution

The fourth proportional to 3,313.12, 4,571.84 and 1,986.32 is: 2,740.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.12 : 4,571.84 = 1,986.32 : x
  2. Step 2: Convert to fraction form
    3,313.12/4,571.84 = 1,986.32/x
  3. Step 3: Cross multiply
    3,313.12x = 4,571.84 × 1,986.32
  4. Step 4: Simplify right side
    3,313.12x = 9,081,137.23
  5. Step 5: Solve for x
    x = 9,081,137.23/3,313.12
  6. Step 6: Final answer
    x = 2,740.96

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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.