Home / 4,518.12-6,776.94-1,231.20

Finding the Fourth Proportional to 4,518.12, 6,776.94 and 1,231.20

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Solution

The fourth proportional to 4,518.12, 6,776.94 and 1,231.20 is: 1,846.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.12 : 6,776.94 = 1,231.20 : x
  2. Step 2: Convert to fraction form
    4,518.12/6,776.94 = 1,231.20/x
  3. Step 3: Cross multiply
    4,518.12x = 6,776.94 × 1,231.20
  4. Step 4: Simplify right side
    4,518.12x = 8,343,768.53
  5. Step 5: Solve for x
    x = 8,343,768.53/4,518.12
  6. Step 6: Final answer
    x = 1,846.73

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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.