Home / 1,982.60-2,736.08-1,196.63

Finding the Fourth Proportional to 1,982.60, 2,736.08 and 1,196.63

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Solution

The fourth proportional to 1,982.60, 2,736.08 and 1,196.63 is: 1,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.60 : 2,736.08 = 1,196.63 : x
  2. Step 2: Convert to fraction form
    1,982.60/2,736.08 = 1,196.63/x
  3. Step 3: Cross multiply
    1,982.60x = 2,736.08 × 1,196.63
  4. Step 4: Simplify right side
    1,982.60x = 3,274,055.75
  5. Step 5: Solve for x
    x = 3,274,055.75/1,982.60
  6. Step 6: Final answer
    x = 1,651.40

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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.