Home / 5,618.19-8,427.48-2,107.85

Finding the Fourth Proportional to 5,618.19, 8,427.48 and 2,107.85

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Solution

The fourth proportional to 5,618.19, 8,427.48 and 2,107.85 is: 3,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.19 : 8,427.48 = 2,107.85 : x
  2. Step 2: Convert to fraction form
    5,618.19/8,427.48 = 2,107.85/x
  3. Step 3: Cross multiply
    5,618.19x = 8,427.48 × 2,107.85
  4. Step 4: Simplify right side
    5,618.19x = 17,763,821.58
  5. Step 5: Solve for x
    x = 17,763,821.58/5,618.19
  6. Step 6: Final answer
    x = 3,161.84

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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.