Home / 2,821.34-3,893.67-1,626.71

Finding the Fourth Proportional to 2,821.34, 3,893.67 and 1,626.71

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Solution

The fourth proportional to 2,821.34, 3,893.67 and 1,626.71 is: 2,244.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.34 : 3,893.67 = 1,626.71 : x
  2. Step 2: Convert to fraction form
    2,821.34/3,893.67 = 1,626.71/x
  3. Step 3: Cross multiply
    2,821.34x = 3,893.67 × 1,626.71
  4. Step 4: Simplify right side
    2,821.34x = 6,333,871.93
  5. Step 5: Solve for x
    x = 6,333,871.93/2,821.34
  6. Step 6: Final answer
    x = 2,244.99

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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.