Home / 6,408.60-9,615.24-2,515.68

Finding the Fourth Proportional to 6,408.60, 9,615.24 and 2,515.68

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Solution

The fourth proportional to 6,408.60, 9,615.24 and 2,515.68 is: 3,774.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.60 : 9,615.24 = 2,515.68 : x
  2. Step 2: Convert to fraction form
    6,408.60/9,615.24 = 2,515.68/x
  3. Step 3: Cross multiply
    6,408.60x = 9,615.24 × 2,515.68
  4. Step 4: Simplify right side
    6,408.60x = 24,188,866.96
  5. Step 5: Solve for x
    x = 24,188,866.96/6,408.60
  6. Step 6: Final answer
    x = 3,774.44

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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.