Home / 3,028.34-4,180.13-1,911.14

Finding the Fourth Proportional to 3,028.34, 4,180.13 and 1,911.14

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Solution

The fourth proportional to 3,028.34, 4,180.13 and 1,911.14 is: 2,638.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.34 : 4,180.13 = 1,911.14 : x
  2. Step 2: Convert to fraction form
    3,028.34/4,180.13 = 1,911.14/x
  3. Step 3: Cross multiply
    3,028.34x = 4,180.13 × 1,911.14
  4. Step 4: Simplify right side
    3,028.34x = 7,988,804.09
  5. Step 5: Solve for x
    x = 7,988,804.09/3,028.34
  6. Step 6: Final answer
    x = 2,638.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.