Home / 1,514.32-2,271.48-418.77

Finding the Fourth Proportional to 1,514.32, 2,271.48 and 418.77

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Solution

The fourth proportional to 1,514.32, 2,271.48 and 418.77 is: 628.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.32 : 2,271.48 = 418.77 : x
  2. Step 2: Convert to fraction form
    1,514.32/2,271.48 = 418.77/x
  3. Step 3: Cross multiply
    1,514.32x = 2,271.48 × 418.77
  4. Step 4: Simplify right side
    1,514.32x = 951,229.64
  5. Step 5: Solve for x
    x = 951,229.64/1,514.32
  6. Step 6: Final answer
    x = 628.16

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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.