Home / 3,086.30-4,258.43-1,827.75

Finding the Fourth Proportional to 3,086.30, 4,258.43 and 1,827.75

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Solution

The fourth proportional to 3,086.30, 4,258.43 and 1,827.75 is: 2,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.30 : 4,258.43 = 1,827.75 : x
  2. Step 2: Convert to fraction form
    3,086.30/4,258.43 = 1,827.75/x
  3. Step 3: Cross multiply
    3,086.30x = 4,258.43 × 1,827.75
  4. Step 4: Simplify right side
    3,086.30x = 7,783,324.14
  5. Step 5: Solve for x
    x = 7,783,324.14/3,086.30
  6. Step 6: Final answer
    x = 2,521.90

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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.