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Finding the Fourth Proportional to 7,885.35, 11,825.60 and 2,619.24

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Solution

The fourth proportional to 7,885.35, 11,825.60 and 2,619.24 is: 3,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.35 : 11,825.60 = 2,619.24 : x
  2. Step 2: Convert to fraction form
    7,885.35/11,825.60 = 2,619.24/x
  3. Step 3: Cross multiply
    7,885.35x = 11,825.60 × 2,619.24
  4. Step 4: Simplify right side
    7,885.35x = 30,974,027.10
  5. Step 5: Solve for x
    x = 30,974,027.10/7,885.35
  6. Step 6: Final answer
    x = 3,928.05

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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.