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Finding the Fourth Proportional to 7,272.24, 10,910 and 2,655.24

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Solution

The fourth proportional to 7,272.24, 10,910 and 2,655.24 is: 3,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.24 : 10,910 = 2,655.24 : x
  2. Step 2: Convert to fraction form
    7,272.24/10,910 = 2,655.24/x
  3. Step 3: Cross multiply
    7,272.24x = 10,910 × 2,655.24
  4. Step 4: Simplify right side
    7,272.24x = 28,968,668.40
  5. Step 5: Solve for x
    x = 28,968,668.40/7,272.24
  6. Step 6: Final answer
    x = 3,983.46

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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.