Home / 7,581.12-11,374.83-3,630.39

Finding the Fourth Proportional to 7,581.12, 11,374.83 and 3,630.39

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Solution

The fourth proportional to 7,581.12, 11,374.83 and 3,630.39 is: 5,447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.12 : 11,374.83 = 3,630.39 : x
  2. Step 2: Convert to fraction form
    7,581.12/11,374.83 = 3,630.39/x
  3. Step 3: Cross multiply
    7,581.12x = 11,374.83 × 3,630.39
  4. Step 4: Simplify right side
    7,581.12x = 41,295,069.08
  5. Step 5: Solve for x
    x = 41,295,069.08/7,581.12
  6. Step 6: Final answer
    x = 5,447.09

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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.