Home / 3,616.64-5,421.64-1,306.52

Finding the Fourth Proportional to 3,616.64, 5,421.64 and 1,306.52

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Solution

The fourth proportional to 3,616.64, 5,421.64 and 1,306.52 is: 1,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.64 : 5,421.64 = 1,306.52 : x
  2. Step 2: Convert to fraction form
    3,616.64/5,421.64 = 1,306.52/x
  3. Step 3: Cross multiply
    3,616.64x = 5,421.64 × 1,306.52
  4. Step 4: Simplify right side
    3,616.64x = 7,083,481.09
  5. Step 5: Solve for x
    x = 7,083,481.09/3,616.64
  6. Step 6: Final answer
    x = 1,958.58

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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.