Home / 2,208.61-3,313.67-1,112.07

Finding the Fourth Proportional to 2,208.61, 3,313.67 and 1,112.07

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Solution

The fourth proportional to 2,208.61, 3,313.67 and 1,112.07 is: 1,668.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.61 : 3,313.67 = 1,112.07 : x
  2. Step 2: Convert to fraction form
    2,208.61/3,313.67 = 1,112.07/x
  3. Step 3: Cross multiply
    2,208.61x = 3,313.67 × 1,112.07
  4. Step 4: Simplify right side
    2,208.61x = 3,685,033.00
  5. Step 5: Solve for x
    x = 3,685,033.00/2,208.61
  6. Step 6: Final answer
    x = 1,668.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.