Home / 7,131.84-10,696.68-2,748.66

Finding the Fourth Proportional to 7,131.84, 10,696.68 and 2,748.66

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Solution

The fourth proportional to 7,131.84, 10,696.68 and 2,748.66 is: 4,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.84 : 10,696.68 = 2,748.66 : x
  2. Step 2: Convert to fraction form
    7,131.84/10,696.68 = 2,748.66/x
  3. Step 3: Cross multiply
    7,131.84x = 10,696.68 × 2,748.66
  4. Step 4: Simplify right side
    7,131.84x = 29,401,536.45
  5. Step 5: Solve for x
    x = 29,401,536.45/7,131.84
  6. Step 6: Final answer
    x = 4,122.57

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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.