Home / 7,679.53-11,518.38-2,681.03

Finding the Fourth Proportional to 7,679.53, 11,518.38 and 2,681.03

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Solution

The fourth proportional to 7,679.53, 11,518.38 and 2,681.03 is: 4,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.53 : 11,518.38 = 2,681.03 : x
  2. Step 2: Convert to fraction form
    7,679.53/11,518.38 = 2,681.03/x
  3. Step 3: Cross multiply
    7,679.53x = 11,518.38 × 2,681.03
  4. Step 4: Simplify right side
    7,679.53x = 30,881,151.13
  5. Step 5: Solve for x
    x = 30,881,151.13/7,679.53
  6. Step 6: Final answer
    x = 4,021.23

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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.