Home / 1,514.52-2,271.42-419.00

Finding the Fourth Proportional to 1,514.52, 2,271.42 and 419.00

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Solution

The fourth proportional to 1,514.52, 2,271.42 and 419.00 is: 628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.52 : 2,271.42 = 419.00 : x
  2. Step 2: Convert to fraction form
    1,514.52/2,271.42 = 419.00/x
  3. Step 3: Cross multiply
    1,514.52x = 2,271.42 × 419.00
  4. Step 4: Simplify right side
    1,514.52x = 951,713.62
  5. Step 5: Solve for x
    x = 951,713.62/1,514.52
  6. Step 6: Final answer
    x = 628.39

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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.