Home / 3,066.89-4,231.73-1,948.01

Finding the Fourth Proportional to 3,066.89, 4,231.73 and 1,948.01

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Solution

The fourth proportional to 3,066.89, 4,231.73 and 1,948.01 is: 2,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.89 : 4,231.73 = 1,948.01 : x
  2. Step 2: Convert to fraction form
    3,066.89/4,231.73 = 1,948.01/x
  3. Step 3: Cross multiply
    3,066.89x = 4,231.73 × 1,948.01
  4. Step 4: Simplify right side
    3,066.89x = 8,243,442.62
  5. Step 5: Solve for x
    x = 8,243,442.62/3,066.89
  6. Step 6: Final answer
    x = 2,687.88

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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.