Home / 7,708.45-11,562.08-2,161.50

Finding the Fourth Proportional to 7,708.45, 11,562.08 and 2,161.50

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Solution

The fourth proportional to 7,708.45, 11,562.08 and 2,161.50 is: 3,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.45 : 11,562.08 = 2,161.50 : x
  2. Step 2: Convert to fraction form
    7,708.45/11,562.08 = 2,161.50/x
  3. Step 3: Cross multiply
    7,708.45x = 11,562.08 × 2,161.50
  4. Step 4: Simplify right side
    7,708.45x = 24,991,435.92
  5. Step 5: Solve for x
    x = 24,991,435.92/7,708.45
  6. Step 6: Final answer
    x = 3,242.08

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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.