Home / 3,659.56-5,515.22-3,308.92

Finding the Fourth Proportional to 3,659.56, 5,515.22 and 3,308.92

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Solution

The fourth proportional to 3,659.56, 5,515.22 and 3,308.92 is: 4,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.56 : 5,515.22 = 3,308.92 : x
  2. Step 2: Convert to fraction form
    3,659.56/5,515.22 = 3,308.92/x
  3. Step 3: Cross multiply
    3,659.56x = 5,515.22 × 3,308.92
  4. Step 4: Simplify right side
    3,659.56x = 18,249,421.76
  5. Step 5: Solve for x
    x = 18,249,421.76/3,659.56
  6. Step 6: Final answer
    x = 4,986.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.