Home / 2,313.89-3,194.21-1,608.11

Finding the Fourth Proportional to 2,313.89, 3,194.21 and 1,608.11

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Solution

The fourth proportional to 2,313.89, 3,194.21 and 1,608.11 is: 2,219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.89 : 3,194.21 = 1,608.11 : x
  2. Step 2: Convert to fraction form
    2,313.89/3,194.21 = 1,608.11/x
  3. Step 3: Cross multiply
    2,313.89x = 3,194.21 × 1,608.11
  4. Step 4: Simplify right side
    2,313.89x = 5,136,640.99
  5. Step 5: Solve for x
    x = 5,136,640.99/2,313.89
  6. Step 6: Final answer
    x = 2,219.92

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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.