Home / 2,313.37-3,192.21-1,318.62

Finding the Fourth Proportional to 2,313.37, 3,192.21 and 1,318.62

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Solution

The fourth proportional to 2,313.37, 3,192.21 and 1,318.62 is: 1,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.37 : 3,192.21 = 1,318.62 : x
  2. Step 2: Convert to fraction form
    2,313.37/3,192.21 = 1,318.62/x
  3. Step 3: Cross multiply
    2,313.37x = 3,192.21 × 1,318.62
  4. Step 4: Simplify right side
    2,313.37x = 4,209,311.95
  5. Step 5: Solve for x
    x = 4,209,311.95/2,313.37
  6. Step 6: Final answer
    x = 1,819.56

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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.