Home / 3,421.52-5,132.92-1,369.68

Finding the Fourth Proportional to 3,421.52, 5,132.92 and 1,369.68

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Solution

The fourth proportional to 3,421.52, 5,132.92 and 1,369.68 is: 2,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.52 : 5,132.92 = 1,369.68 : x
  2. Step 2: Convert to fraction form
    3,421.52/5,132.92 = 1,369.68/x
  3. Step 3: Cross multiply
    3,421.52x = 5,132.92 × 1,369.68
  4. Step 4: Simplify right side
    3,421.52x = 7,030,457.87
  5. Step 5: Solve for x
    x = 7,030,457.87/3,421.52
  6. Step 6: Final answer
    x = 2,054.78

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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.