Home / 3,618.38-4,992.55-2,291.33

Finding the Fourth Proportional to 3,618.38, 4,992.55 and 2,291.33

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Solution

The fourth proportional to 3,618.38, 4,992.55 and 2,291.33 is: 3,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.38 : 4,992.55 = 2,291.33 : x
  2. Step 2: Convert to fraction form
    3,618.38/4,992.55 = 2,291.33/x
  3. Step 3: Cross multiply
    3,618.38x = 4,992.55 × 2,291.33
  4. Step 4: Simplify right side
    3,618.38x = 11,439,586.34
  5. Step 5: Solve for x
    x = 11,439,586.34/3,618.38
  6. Step 6: Final answer
    x = 3,161.52

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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.