Home / 3,090.75-4,636.13-1,243.14

Finding the Fourth Proportional to 3,090.75, 4,636.13 and 1,243.14

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Solution

The fourth proportional to 3,090.75, 4,636.13 and 1,243.14 is: 1,864.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.75 : 4,636.13 = 1,243.14 : x
  2. Step 2: Convert to fraction form
    3,090.75/4,636.13 = 1,243.14/x
  3. Step 3: Cross multiply
    3,090.75x = 4,636.13 × 1,243.14
  4. Step 4: Simplify right side
    3,090.75x = 5,763,352.43
  5. Step 5: Solve for x
    x = 5,763,352.43/3,090.75
  6. Step 6: Final answer
    x = 1,864.71

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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.