Home / 2,235.66-3,354.21-936.78

Finding the Fourth Proportional to 2,235.66, 3,354.21 and 936.78

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Solution

The fourth proportional to 2,235.66, 3,354.21 and 936.78 is: 1,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.66 : 3,354.21 = 936.78 : x
  2. Step 2: Convert to fraction form
    2,235.66/3,354.21 = 936.78/x
  3. Step 3: Cross multiply
    2,235.66x = 3,354.21 × 936.78
  4. Step 4: Simplify right side
    2,235.66x = 3,142,156.84
  5. Step 5: Solve for x
    x = 3,142,156.84/2,235.66
  6. Step 6: Final answer
    x = 1,405.47

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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.