Home / 3,613.55-5,421.36-1,764.68

Finding the Fourth Proportional to 3,613.55, 5,421.36 and 1,764.68

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Solution

The fourth proportional to 3,613.55, 5,421.36 and 1,764.68 is: 2,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.55 : 5,421.36 = 1,764.68 : x
  2. Step 2: Convert to fraction form
    3,613.55/5,421.36 = 1,764.68/x
  3. Step 3: Cross multiply
    3,613.55x = 5,421.36 × 1,764.68
  4. Step 4: Simplify right side
    3,613.55x = 9,566,965.56
  5. Step 5: Solve for x
    x = 9,566,965.56/3,613.55
  6. Step 6: Final answer
    x = 2,647.53

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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.