Home / 2,815.68-3,884.58-1,696.44

Finding the Fourth Proportional to 2,815.68, 3,884.58 and 1,696.44

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Solution

The fourth proportional to 2,815.68, 3,884.58 and 1,696.44 is: 2,340.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.68 : 3,884.58 = 1,696.44 : x
  2. Step 2: Convert to fraction form
    2,815.68/3,884.58 = 1,696.44/x
  3. Step 3: Cross multiply
    2,815.68x = 3,884.58 × 1,696.44
  4. Step 4: Simplify right side
    2,815.68x = 6,589,956.90
  5. Step 5: Solve for x
    x = 6,589,956.90/2,815.68
  6. Step 6: Final answer
    x = 2,340.45

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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.