Home / 3,726.75-5,142.96-2,235.96

Finding the Fourth Proportional to 3,726.75, 5,142.96 and 2,235.96

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Solution

The fourth proportional to 3,726.75, 5,142.96 and 2,235.96 is: 3,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.75 : 5,142.96 = 2,235.96 : x
  2. Step 2: Convert to fraction form
    3,726.75/5,142.96 = 2,235.96/x
  3. Step 3: Cross multiply
    3,726.75x = 5,142.96 × 2,235.96
  4. Step 4: Simplify right side
    3,726.75x = 11,499,452.84
  5. Step 5: Solve for x
    x = 11,499,452.84/3,726.75
  6. Step 6: Final answer
    x = 3,085.65

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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.