Home / 1,514.85-2,272.41-419.19

Finding the Fourth Proportional to 1,514.85, 2,272.41 and 419.19

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Solution

The fourth proportional to 1,514.85, 2,272.41 and 419.19 is: 628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.85 : 2,272.41 = 419.19 : x
  2. Step 2: Convert to fraction form
    1,514.85/2,272.41 = 419.19/x
  3. Step 3: Cross multiply
    1,514.85x = 2,272.41 × 419.19
  4. Step 4: Simplify right side
    1,514.85x = 952,571.55
  5. Step 5: Solve for x
    x = 952,571.55/1,514.85
  6. Step 6: Final answer
    x = 628.82

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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.