Home / 7,617.15-11,423.70-2,619.45

Finding the Fourth Proportional to 7,617.15, 11,423.70 and 2,619.45

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Solution

The fourth proportional to 7,617.15, 11,423.70 and 2,619.45 is: 3,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.15 : 11,423.70 = 2,619.45 : x
  2. Step 2: Convert to fraction form
    7,617.15/11,423.70 = 2,619.45/x
  3. Step 3: Cross multiply
    7,617.15x = 11,423.70 × 2,619.45
  4. Step 4: Simplify right side
    7,617.15x = 29,923,810.97
  5. Step 5: Solve for x
    x = 29,923,810.97/7,617.15
  6. Step 6: Final answer
    x = 3,928.48

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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.