Home / 7,128.26-10,692.42-2,965.67

Finding the Fourth Proportional to 7,128.26, 10,692.42 and 2,965.67

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Solution

The fourth proportional to 7,128.26, 10,692.42 and 2,965.67 is: 4,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.26 : 10,692.42 = 2,965.67 : x
  2. Step 2: Convert to fraction form
    7,128.26/10,692.42 = 2,965.67/x
  3. Step 3: Cross multiply
    7,128.26x = 10,692.42 × 2,965.67
  4. Step 4: Simplify right side
    7,128.26x = 31,710,189.22
  5. Step 5: Solve for x
    x = 31,710,189.22/7,128.26
  6. Step 6: Final answer
    x = 4,448.52

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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.