Home / 3,066.21-4,231.67-1,807.65

Finding the Fourth Proportional to 3,066.21, 4,231.67 and 1,807.65

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Solution

The fourth proportional to 3,066.21, 4,231.67 and 1,807.65 is: 2,494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.21 : 4,231.67 = 1,807.65 : x
  2. Step 2: Convert to fraction form
    3,066.21/4,231.67 = 1,807.65/x
  3. Step 3: Cross multiply
    3,066.21x = 4,231.67 × 1,807.65
  4. Step 4: Simplify right side
    3,066.21x = 7,649,378.28
  5. Step 5: Solve for x
    x = 7,649,378.28/3,066.21
  6. Step 6: Final answer
    x = 2,494.73

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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.