Home / 7,804.31-11,699.52-2,872.81

Finding the Fourth Proportional to 7,804.31, 11,699.52 and 2,872.81

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Solution

The fourth proportional to 7,804.31, 11,699.52 and 2,872.81 is: 4,306.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,804.31 : 11,699.52 = 2,872.81 : x
  2. Step 2: Convert to fraction form
    7,804.31/11,699.52 = 2,872.81/x
  3. Step 3: Cross multiply
    7,804.31x = 11,699.52 × 2,872.81
  4. Step 4: Simplify right side
    7,804.31x = 33,610,498.05
  5. Step 5: Solve for x
    x = 33,610,498.05/7,804.31
  6. Step 6: Final answer
    x = 4,306.66

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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.