Home / 2,840.10-4,258.92-1,084.80

Finding the Fourth Proportional to 2,840.10, 4,258.92 and 1,084.80

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Solution

The fourth proportional to 2,840.10, 4,258.92 and 1,084.80 is: 1,626.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.10 : 4,258.92 = 1,084.80 : x
  2. Step 2: Convert to fraction form
    2,840.10/4,258.92 = 1,084.80/x
  3. Step 3: Cross multiply
    2,840.10x = 4,258.92 × 1,084.80
  4. Step 4: Simplify right side
    2,840.10x = 4,620,076.42
  5. Step 5: Solve for x
    x = 4,620,076.42/2,840.10
  6. Step 6: Final answer
    x = 1,626.73

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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.