Home / 4,990.71-6,884.96-2,893.62

Finding the Fourth Proportional to 4,990.71, 6,884.96 and 2,893.62

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Solution

The fourth proportional to 4,990.71, 6,884.96 and 2,893.62 is: 3,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.71 : 6,884.96 = 2,893.62 : x
  2. Step 2: Convert to fraction form
    4,990.71/6,884.96 = 2,893.62/x
  3. Step 3: Cross multiply
    4,990.71x = 6,884.96 × 2,893.62
  4. Step 4: Simplify right side
    4,990.71x = 19,922,443.49
  5. Step 5: Solve for x
    x = 19,922,443.49/4,990.71
  6. Step 6: Final answer
    x = 3,991.91

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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.