Home / 3,313.45-4,571.55-1,986.67

Finding the Fourth Proportional to 3,313.45, 4,571.55 and 1,986.67

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Solution

The fourth proportional to 3,313.45, 4,571.55 and 1,986.67 is: 2,741.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.45 : 4,571.55 = 1,986.67 : x
  2. Step 2: Convert to fraction form
    3,313.45/4,571.55 = 1,986.67/x
  3. Step 3: Cross multiply
    3,313.45x = 4,571.55 × 1,986.67
  4. Step 4: Simplify right side
    3,313.45x = 9,082,161.24
  5. Step 5: Solve for x
    x = 9,082,161.24/3,313.45
  6. Step 6: Final answer
    x = 2,741.00

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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.