Home / 7,182.12-9,912.94-4,199.40

Finding the Fourth Proportional to 7,182.12, 9,912.94 and 4,199.40

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Solution

The fourth proportional to 7,182.12, 9,912.94 and 4,199.40 is: 5,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.12 : 9,912.94 = 4,199.40 : x
  2. Step 2: Convert to fraction form
    7,182.12/9,912.94 = 4,199.40/x
  3. Step 3: Cross multiply
    7,182.12x = 9,912.94 × 4,199.40
  4. Step 4: Simplify right side
    7,182.12x = 41,628,400.24
  5. Step 5: Solve for x
    x = 41,628,400.24/7,182.12
  6. Step 6: Final answer
    x = 5,796.12

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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.