Home / 3,091.14-4,636.81-899.68

Finding the Fourth Proportional to 3,091.14, 4,636.81 and 899.68

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Solution

The fourth proportional to 3,091.14, 4,636.81 and 899.68 is: 1,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.14 : 4,636.81 = 899.68 : x
  2. Step 2: Convert to fraction form
    3,091.14/4,636.81 = 899.68/x
  3. Step 3: Cross multiply
    3,091.14x = 4,636.81 × 899.68
  4. Step 4: Simplify right side
    3,091.14x = 4,171,645.22
  5. Step 5: Solve for x
    x = 4,171,645.22/3,091.14
  6. Step 6: Final answer
    x = 1,349.55

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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.