Home / 3,613.68-5,415.03-2,684.90

Finding the Fourth Proportional to 3,613.68, 5,415.03 and 2,684.90

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Solution

The fourth proportional to 3,613.68, 5,415.03 and 2,684.90 is: 4,023.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.68 : 5,415.03 = 2,684.90 : x
  2. Step 2: Convert to fraction form
    3,613.68/5,415.03 = 2,684.90/x
  3. Step 3: Cross multiply
    3,613.68x = 5,415.03 × 2,684.90
  4. Step 4: Simplify right side
    3,613.68x = 14,538,827.58
  5. Step 5: Solve for x
    x = 14,538,827.58/3,613.68
  6. Step 6: Final answer
    x = 4,023.27

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1.5x scale

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.