Home / 2,208.36-3,047.48-1,213.60

Finding the Fourth Proportional to 2,208.36, 3,047.48 and 1,213.60

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Solution

The fourth proportional to 2,208.36, 3,047.48 and 1,213.60 is: 1,674.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.36 : 3,047.48 = 1,213.60 : x
  2. Step 2: Convert to fraction form
    2,208.36/3,047.48 = 1,213.60/x
  3. Step 3: Cross multiply
    2,208.36x = 3,047.48 × 1,213.60
  4. Step 4: Simplify right side
    2,208.36x = 3,698,421.73
  5. Step 5: Solve for x
    x = 3,698,421.73/2,208.36
  6. Step 6: Final answer
    x = 1,674.74

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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.