Home / 1,514.30-2,271.43-418.65

Finding the Fourth Proportional to 1,514.30, 2,271.43 and 418.65

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Solution

The fourth proportional to 1,514.30, 2,271.43 and 418.65 is: 627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.30 : 2,271.43 = 418.65 : x
  2. Step 2: Convert to fraction form
    1,514.30/2,271.43 = 418.65/x
  3. Step 3: Cross multiply
    1,514.30x = 2,271.43 × 418.65
  4. Step 4: Simplify right side
    1,514.30x = 950,932.08
  5. Step 5: Solve for x
    x = 950,932.08/1,514.30
  6. Step 6: Final answer
    x = 627.97

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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.