Home / 2,045.81-3,067.09-890.75

Finding the Fourth Proportional to 2,045.81, 3,067.09 and 890.75

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Solution

The fourth proportional to 2,045.81, 3,067.09 and 890.75 is: 1,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.81 : 3,067.09 = 890.75 : x
  2. Step 2: Convert to fraction form
    2,045.81/3,067.09 = 890.75/x
  3. Step 3: Cross multiply
    2,045.81x = 3,067.09 × 890.75
  4. Step 4: Simplify right side
    2,045.81x = 2,732,010.42
  5. Step 5: Solve for x
    x = 2,732,010.42/2,045.81
  6. Step 6: Final answer
    x = 1,335.42

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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.