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Finding the Fourth Proportional to 6,788.10, 10,182.15 and 1,857.37

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Solution

The fourth proportional to 6,788.10, 10,182.15 and 1,857.37 is: 2,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,788.10 : 10,182.15 = 1,857.37 : x
  2. Step 2: Convert to fraction form
    6,788.10/10,182.15 = 1,857.37/x
  3. Step 3: Cross multiply
    6,788.10x = 10,182.15 × 1,857.37
  4. Step 4: Simplify right side
    6,788.10x = 18,912,019.95
  5. Step 5: Solve for x
    x = 18,912,019.95/6,788.10
  6. Step 6: Final answer
    x = 2,786.06

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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.