Home / 3,765.12-5,647.86-1,818.96

Finding the Fourth Proportional to 3,765.12, 5,647.86 and 1,818.96

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Solution

The fourth proportional to 3,765.12, 5,647.86 and 1,818.96 is: 2,728.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.12 : 5,647.86 = 1,818.96 : x
  2. Step 2: Convert to fraction form
    3,765.12/5,647.86 = 1,818.96/x
  3. Step 3: Cross multiply
    3,765.12x = 5,647.86 × 1,818.96
  4. Step 4: Simplify right side
    3,765.12x = 10,273,231.43
  5. Step 5: Solve for x
    x = 10,273,231.43/3,765.12
  6. Step 6: Final answer
    x = 2,728.53

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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.