Home / 6,408.64-9,618.40-2,515.76

Finding the Fourth Proportional to 6,408.64, 9,618.40 and 2,515.76

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Solution

The fourth proportional to 6,408.64, 9,618.40 and 2,515.76 is: 3,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.64 : 9,618.40 = 2,515.76 : x
  2. Step 2: Convert to fraction form
    6,408.64/9,618.40 = 2,515.76/x
  3. Step 3: Cross multiply
    6,408.64x = 9,618.40 × 2,515.76
  4. Step 4: Simplify right side
    6,408.64x = 24,197,585.98
  5. Step 5: Solve for x
    x = 24,197,585.98/6,408.64
  6. Step 6: Final answer
    x = 3,775.78

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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.