Home / 7,610.31-11,415.60-2,929.86

Finding the Fourth Proportional to 7,610.31, 11,415.60 and 2,929.86

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Solution

The fourth proportional to 7,610.31, 11,415.60 and 2,929.86 is: 4,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.31 : 11,415.60 = 2,929.86 : x
  2. Step 2: Convert to fraction form
    7,610.31/11,415.60 = 2,929.86/x
  3. Step 3: Cross multiply
    7,610.31x = 11,415.60 × 2,929.86
  4. Step 4: Simplify right side
    7,610.31x = 33,446,109.82
  5. Step 5: Solve for x
    x = 33,446,109.82/7,610.31
  6. Step 6: Final answer
    x = 4,394.84

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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.