Home / 3,186.19-4,779.29-1,106.20

Finding the Fourth Proportional to 3,186.19, 4,779.29 and 1,106.20

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Solution

The fourth proportional to 3,186.19, 4,779.29 and 1,106.20 is: 1,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.19 : 4,779.29 = 1,106.20 : x
  2. Step 2: Convert to fraction form
    3,186.19/4,779.29 = 1,106.20/x
  3. Step 3: Cross multiply
    3,186.19x = 4,779.29 × 1,106.20
  4. Step 4: Simplify right side
    3,186.19x = 5,286,850.60
  5. Step 5: Solve for x
    x = 5,286,850.60/3,186.19
  6. Step 6: Final answer
    x = 1,659.30

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Double scale
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Similar ratio
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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.