Home / 7,405.11-11,107.90-3,242.98

Finding the Fourth Proportional to 7,405.11, 11,107.90 and 3,242.98

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Solution

The fourth proportional to 7,405.11, 11,107.90 and 3,242.98 is: 4,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.11 : 11,107.90 = 3,242.98 : x
  2. Step 2: Convert to fraction form
    7,405.11/11,107.90 = 3,242.98/x
  3. Step 3: Cross multiply
    7,405.11x = 11,107.90 × 3,242.98
  4. Step 4: Simplify right side
    7,405.11x = 36,022,661.66
  5. Step 5: Solve for x
    x = 36,022,661.66/7,405.11
  6. Step 6: Final answer
    x = 4,864.57

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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.