Home / 7,025.76-10,536.96-3,128

Finding the Fourth Proportional to 7,025.76, 10,536.96 and 3,128

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Solution

The fourth proportional to 7,025.76, 10,536.96 and 3,128 is: 4,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,025.76 : 10,536.96 = 3,128 : x
  2. Step 2: Convert to fraction form
    7,025.76/10,536.96 = 3,128/x
  3. Step 3: Cross multiply
    7,025.76x = 10,536.96 × 3,128
  4. Step 4: Simplify right side
    7,025.76x = 32,959,610.88
  5. Step 5: Solve for x
    x = 32,959,610.88/7,025.76
  6. Step 6: Final answer
    x = 4,691.25

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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.