Home / 1,190.60-1,783.30-982.84

Finding the Fourth Proportional to 1,190.60, 1,783.30 and 982.84

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Solution

The fourth proportional to 1,190.60, 1,783.30 and 982.84 is: 1,472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.60 : 1,783.30 = 982.84 : x
  2. Step 2: Convert to fraction form
    1,190.60/1,783.30 = 982.84/x
  3. Step 3: Cross multiply
    1,190.60x = 1,783.30 × 982.84
  4. Step 4: Simplify right side
    1,190.60x = 1,752,698.57
  5. Step 5: Solve for x
    x = 1,752,698.57/1,190.60
  6. Step 6: Final answer
    x = 1,472.11

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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.