Home / 4,111.53-6,166.40-1,189.20

Finding the Fourth Proportional to 4,111.53, 6,166.40 and 1,189.20

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Solution

The fourth proportional to 4,111.53, 6,166.40 and 1,189.20 is: 1,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.53 : 6,166.40 = 1,189.20 : x
  2. Step 2: Convert to fraction form
    4,111.53/6,166.40 = 1,189.20/x
  3. Step 3: Cross multiply
    4,111.53x = 6,166.40 × 1,189.20
  4. Step 4: Simplify right side
    4,111.53x = 7,333,076.93
  5. Step 5: Solve for x
    x = 7,333,076.93/4,111.53
  6. Step 6: Final answer
    x = 1,783.54

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1.5x scale

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.