Home / 2,189.60-3,021.63-1,194.88

Finding the Fourth Proportional to 2,189.60, 3,021.63 and 1,194.88

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Solution

The fourth proportional to 2,189.60, 3,021.63 and 1,194.88 is: 1,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.60 : 3,021.63 = 1,194.88 : x
  2. Step 2: Convert to fraction form
    2,189.60/3,021.63 = 1,194.88/x
  3. Step 3: Cross multiply
    2,189.60x = 3,021.63 × 1,194.88
  4. Step 4: Simplify right side
    2,189.60x = 3,610,485.25
  5. Step 5: Solve for x
    x = 3,610,485.25/2,189.60
  6. Step 6: Final answer
    x = 1,648.92

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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.