Home / 2,884.10-3,977.88-2,486.45

Finding the Fourth Proportional to 2,884.10, 3,977.88 and 2,486.45

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Solution

The fourth proportional to 2,884.10, 3,977.88 and 2,486.45 is: 3,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.10 : 3,977.88 = 2,486.45 : x
  2. Step 2: Convert to fraction form
    2,884.10/3,977.88 = 2,486.45/x
  3. Step 3: Cross multiply
    2,884.10x = 3,977.88 × 2,486.45
  4. Step 4: Simplify right side
    2,884.10x = 9,890,799.73
  5. Step 5: Solve for x
    x = 9,890,799.73/2,884.10
  6. Step 6: Final answer
    x = 3,429.42

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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.