Home / 3,107.67-4,661.50-2,130.81

Finding the Fourth Proportional to 3,107.67, 4,661.50 and 2,130.81

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Solution

The fourth proportional to 3,107.67, 4,661.50 and 2,130.81 is: 3,196.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.67 : 4,661.50 = 2,130.81 : x
  2. Step 2: Convert to fraction form
    3,107.67/4,661.50 = 2,130.81/x
  3. Step 3: Cross multiply
    3,107.67x = 4,661.50 × 2,130.81
  4. Step 4: Simplify right side
    3,107.67x = 9,932,770.82
  5. Step 5: Solve for x
    x = 9,932,770.82/3,107.67
  6. Step 6: Final answer
    x = 3,196.21

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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.