Home / 4,990.42-6,884.85-2,894.14

Finding the Fourth Proportional to 4,990.42, 6,884.85 and 2,894.14

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Solution

The fourth proportional to 4,990.42, 6,884.85 and 2,894.14 is: 3,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.42 : 6,884.85 = 2,894.14 : x
  2. Step 2: Convert to fraction form
    4,990.42/6,884.85 = 2,894.14/x
  3. Step 3: Cross multiply
    4,990.42x = 6,884.85 × 2,894.14
  4. Step 4: Simplify right side
    4,990.42x = 19,925,702.57
  5. Step 5: Solve for x
    x = 19,925,702.57/4,990.42
  6. Step 6: Final answer
    x = 3,992.79

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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.