Home / 7,131.47-10,692.75-2,743.70

Finding the Fourth Proportional to 7,131.47, 10,692.75 and 2,743.70

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Solution

The fourth proportional to 7,131.47, 10,692.75 and 2,743.70 is: 4,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.47 : 10,692.75 = 2,743.70 : x
  2. Step 2: Convert to fraction form
    7,131.47/10,692.75 = 2,743.70/x
  3. Step 3: Cross multiply
    7,131.47x = 10,692.75 × 2,743.70
  4. Step 4: Simplify right side
    7,131.47x = 29,337,698.18
  5. Step 5: Solve for x
    x = 29,337,698.18/7,131.47
  6. Step 6: Final answer
    x = 4,113.84

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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.