Home / 3,107.14-4,660.70-2,130.28

Finding the Fourth Proportional to 3,107.14, 4,660.70 and 2,130.28

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Solution

The fourth proportional to 3,107.14, 4,660.70 and 2,130.28 is: 3,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.14 : 4,660.70 = 2,130.28 : x
  2. Step 2: Convert to fraction form
    3,107.14/4,660.70 = 2,130.28/x
  3. Step 3: Cross multiply
    3,107.14x = 4,660.70 × 2,130.28
  4. Step 4: Simplify right side
    3,107.14x = 9,928,589.67
  5. Step 5: Solve for x
    x = 9,928,589.67/3,107.14
  6. Step 6: Final answer
    x = 3,195.41

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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.