Home / 2,628.63-3,942.94-1,804.40

Finding the Fourth Proportional to 2,628.63, 3,942.94 and 1,804.40

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Solution

The fourth proportional to 2,628.63, 3,942.94 and 1,804.40 is: 2,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.63 : 3,942.94 = 1,804.40 : x
  2. Step 2: Convert to fraction form
    2,628.63/3,942.94 = 1,804.40/x
  3. Step 3: Cross multiply
    2,628.63x = 3,942.94 × 1,804.40
  4. Step 4: Simplify right side
    2,628.63x = 7,114,640.94
  5. Step 5: Solve for x
    x = 7,114,640.94/2,628.63
  6. Step 6: Final answer
    x = 2,706.60

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Similar ratio
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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.