Home / 3,091.40-4,636.18-1,629.75

Finding the Fourth Proportional to 3,091.40, 4,636.18 and 1,629.75

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Solution

The fourth proportional to 3,091.40, 4,636.18 and 1,629.75 is: 2,444.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.40 : 4,636.18 = 1,629.75 : x
  2. Step 2: Convert to fraction form
    3,091.40/4,636.18 = 1,629.75/x
  3. Step 3: Cross multiply
    3,091.40x = 4,636.18 × 1,629.75
  4. Step 4: Simplify right side
    3,091.40x = 7,555,814.36
  5. Step 5: Solve for x
    x = 7,555,814.36/3,091.40
  6. Step 6: Final answer
    x = 2,444.14

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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.