Home / 7,429.12-11,141.94-2,164.12

Finding the Fourth Proportional to 7,429.12, 11,141.94 and 2,164.12

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Solution

The fourth proportional to 7,429.12, 11,141.94 and 2,164.12 is: 3,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.12 : 11,141.94 = 2,164.12 : x
  2. Step 2: Convert to fraction form
    7,429.12/11,141.94 = 2,164.12/x
  3. Step 3: Cross multiply
    7,429.12x = 11,141.94 × 2,164.12
  4. Step 4: Simplify right side
    7,429.12x = 24,112,495.19
  5. Step 5: Solve for x
    x = 24,112,495.19/7,429.12
  6. Step 6: Final answer
    x = 3,245.67

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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.