Home / 3,218.96-4,828.35-1,487.58

Finding the Fourth Proportional to 3,218.96, 4,828.35 and 1,487.58

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Solution

The fourth proportional to 3,218.96, 4,828.35 and 1,487.58 is: 2,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.96 : 4,828.35 = 1,487.58 : x
  2. Step 2: Convert to fraction form
    3,218.96/4,828.35 = 1,487.58/x
  3. Step 3: Cross multiply
    3,218.96x = 4,828.35 × 1,487.58
  4. Step 4: Simplify right side
    3,218.96x = 7,182,556.89
  5. Step 5: Solve for x
    x = 7,182,556.89/3,218.96
  6. Step 6: Final answer
    x = 2,231.33

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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.