Home / 3,066.71-4,231.48-1,808.16

Finding the Fourth Proportional to 3,066.71, 4,231.48 and 1,808.16

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Solution

The fourth proportional to 3,066.71, 4,231.48 and 1,808.16 is: 2,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.71 : 4,231.48 = 1,808.16 : x
  2. Step 2: Convert to fraction form
    3,066.71/4,231.48 = 1,808.16/x
  3. Step 3: Cross multiply
    3,066.71x = 4,231.48 × 1,808.16
  4. Step 4: Simplify right side
    3,066.71x = 7,651,162.68
  5. Step 5: Solve for x
    x = 7,651,162.68/3,066.71
  6. Step 6: Final answer
    x = 2,494.91

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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.