Home / 7,238.25-10,849.79-3,345.21

Finding the Fourth Proportional to 7,238.25, 10,849.79 and 3,345.21

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Solution

The fourth proportional to 7,238.25, 10,849.79 and 3,345.21 is: 5,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.25 : 10,849.79 = 3,345.21 : x
  2. Step 2: Convert to fraction form
    7,238.25/10,849.79 = 3,345.21/x
  3. Step 3: Cross multiply
    7,238.25x = 10,849.79 × 3,345.21
  4. Step 4: Simplify right side
    7,238.25x = 36,294,826.01
  5. Step 5: Solve for x
    x = 36,294,826.01/7,238.25
  6. Step 6: Final answer
    x = 5,014.31

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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.