Home / 4,215.75-6,322.25-1,994.23

Finding the Fourth Proportional to 4,215.75, 6,322.25 and 1,994.23

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Solution

The fourth proportional to 4,215.75, 6,322.25 and 1,994.23 is: 2,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.75 : 6,322.25 = 1,994.23 : x
  2. Step 2: Convert to fraction form
    4,215.75/6,322.25 = 1,994.23/x
  3. Step 3: Cross multiply
    4,215.75x = 6,322.25 × 1,994.23
  4. Step 4: Simplify right side
    4,215.75x = 12,608,042.40
  5. Step 5: Solve for x
    x = 12,608,042.40/4,215.75
  6. Step 6: Final answer
    x = 2,990.70

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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.