Home / 2,485.12-3,724.80-2,197.12

Finding the Fourth Proportional to 2,485.12, 3,724.80 and 2,197.12

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Solution

The fourth proportional to 2,485.12, 3,724.80 and 2,197.12 is: 3,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.12 : 3,724.80 = 2,197.12 : x
  2. Step 2: Convert to fraction form
    2,485.12/3,724.80 = 2,197.12/x
  3. Step 3: Cross multiply
    2,485.12x = 3,724.80 × 2,197.12
  4. Step 4: Simplify right side
    2,485.12x = 8,183,832.58
  5. Step 5: Solve for x
    x = 8,183,832.58/2,485.12
  6. Step 6: Final answer
    x = 3,293.13

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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.