Home / 1,514.19-2,271.29-418.47

Finding the Fourth Proportional to 1,514.19, 2,271.29 and 418.47

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Solution

The fourth proportional to 1,514.19, 2,271.29 and 418.47 is: 627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.19 : 2,271.29 = 418.47 : x
  2. Step 2: Convert to fraction form
    1,514.19/2,271.29 = 418.47/x
  3. Step 3: Cross multiply
    1,514.19x = 2,271.29 × 418.47
  4. Step 4: Simplify right side
    1,514.19x = 950,458.47
  5. Step 5: Solve for x
    x = 950,458.47/1,514.19
  6. Step 6: Final answer
    x = 627.70

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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.