Home / 1,514.48-2,271.77-418.85

Finding the Fourth Proportional to 1,514.48, 2,271.77 and 418.85

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Solution

The fourth proportional to 1,514.48, 2,271.77 and 418.85 is: 628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.48 : 2,271.77 = 418.85 : x
  2. Step 2: Convert to fraction form
    1,514.48/2,271.77 = 418.85/x
  3. Step 3: Cross multiply
    1,514.48x = 2,271.77 × 418.85
  4. Step 4: Simplify right side
    1,514.48x = 951,522.29
  5. Step 5: Solve for x
    x = 951,522.29/1,514.48
  6. Step 6: Final answer
    x = 628.28

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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.