Home / 7,172.61-10,756.48-2,491.38

Finding the Fourth Proportional to 7,172.61, 10,756.48 and 2,491.38

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Solution

The fourth proportional to 7,172.61, 10,756.48 and 2,491.38 is: 3,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.61 : 10,756.48 = 2,491.38 : x
  2. Step 2: Convert to fraction form
    7,172.61/10,756.48 = 2,491.38/x
  3. Step 3: Cross multiply
    7,172.61x = 10,756.48 × 2,491.38
  4. Step 4: Simplify right side
    7,172.61x = 26,798,479.14
  5. Step 5: Solve for x
    x = 26,798,479.14/7,172.61
  6. Step 6: Final answer
    x = 3,736.22

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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.