Home / 1,514.21-2,271.06-418.32

Finding the Fourth Proportional to 1,514.21, 2,271.06 and 418.32

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Solution

The fourth proportional to 1,514.21, 2,271.06 and 418.32 is: 627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.21 : 2,271.06 = 418.32 : x
  2. Step 2: Convert to fraction form
    1,514.21/2,271.06 = 418.32/x
  3. Step 3: Cross multiply
    1,514.21x = 2,271.06 × 418.32
  4. Step 4: Simplify right side
    1,514.21x = 950,029.82
  5. Step 5: Solve for x
    x = 950,029.82/1,514.21
  6. Step 6: Final answer
    x = 627.41

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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.