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Finding the Fourth Proportional to 6,408.40, 9,606.12 and 3,480.52

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Solution

The fourth proportional to 6,408.40, 9,606.12 and 3,480.52 is: 5,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.40 : 9,606.12 = 3,480.52 : x
  2. Step 2: Convert to fraction form
    6,408.40/9,606.12 = 3,480.52/x
  3. Step 3: Cross multiply
    6,408.40x = 9,606.12 × 3,480.52
  4. Step 4: Simplify right side
    6,408.40x = 33,434,292.78
  5. Step 5: Solve for x
    x = 33,434,292.78/6,408.40
  6. Step 6: Final answer
    x = 5,217.26

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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.