Home / 1,236.12-1,854.18-414.27

Finding the Fourth Proportional to 1,236.12, 1,854.18 and 414.27

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Solution

The fourth proportional to 1,236.12, 1,854.18 and 414.27 is: 621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.12 : 1,854.18 = 414.27 : x
  2. Step 2: Convert to fraction form
    1,236.12/1,854.18 = 414.27/x
  3. Step 3: Cross multiply
    1,236.12x = 1,854.18 × 414.27
  4. Step 4: Simplify right side
    1,236.12x = 768,131.15
  5. Step 5: Solve for x
    x = 768,131.15/1,236.12
  6. Step 6: Final answer
    x = 621.41

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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.