Home / 2,821.83-4,202.91-2,673.60

Finding the Fourth Proportional to 2,821.83, 4,202.91 and 2,673.60

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Solution

The fourth proportional to 2,821.83, 4,202.91 and 2,673.60 is: 3,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.83 : 4,202.91 = 2,673.60 : x
  2. Step 2: Convert to fraction form
    2,821.83/4,202.91 = 2,673.60/x
  3. Step 3: Cross multiply
    2,821.83x = 4,202.91 × 2,673.60
  4. Step 4: Simplify right side
    2,821.83x = 11,236,900.18
  5. Step 5: Solve for x
    x = 11,236,900.18/2,821.83
  6. Step 6: Final answer
    x = 3,982.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.