Home / 2,208.60-3,047.94-1,213.96

Finding the Fourth Proportional to 2,208.60, 3,047.94 and 1,213.96

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Solution

The fourth proportional to 2,208.60, 3,047.94 and 1,213.96 is: 1,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.60 : 3,047.94 = 1,213.96 : x
  2. Step 2: Convert to fraction form
    2,208.60/3,047.94 = 1,213.96/x
  3. Step 3: Cross multiply
    2,208.60x = 3,047.94 × 1,213.96
  4. Step 4: Simplify right side
    2,208.60x = 3,700,077.24
  5. Step 5: Solve for x
    x = 3,700,077.24/2,208.60
  6. Step 6: Final answer
    x = 1,675.30

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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.