Home / 3,609.12-5,414.08-1,269.12

Finding the Fourth Proportional to 3,609.12, 5,414.08 and 1,269.12

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Solution

The fourth proportional to 3,609.12, 5,414.08 and 1,269.12 is: 1,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.12 : 5,414.08 = 1,269.12 : x
  2. Step 2: Convert to fraction form
    3,609.12/5,414.08 = 1,269.12/x
  3. Step 3: Cross multiply
    3,609.12x = 5,414.08 × 1,269.12
  4. Step 4: Simplify right side
    3,609.12x = 6,871,117.21
  5. Step 5: Solve for x
    x = 6,871,117.21/3,609.12
  6. Step 6: Final answer
    x = 1,903.82

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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.