Home / 7,415.88-11,122.74-2,485.50

Finding the Fourth Proportional to 7,415.88, 11,122.74 and 2,485.50

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Solution

The fourth proportional to 7,415.88, 11,122.74 and 2,485.50 is: 3,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.88 : 11,122.74 = 2,485.50 : x
  2. Step 2: Convert to fraction form
    7,415.88/11,122.74 = 2,485.50/x
  3. Step 3: Cross multiply
    7,415.88x = 11,122.74 × 2,485.50
  4. Step 4: Simplify right side
    7,415.88x = 27,645,570.27
  5. Step 5: Solve for x
    x = 27,645,570.27/7,415.88
  6. Step 6: Final answer
    x = 3,727.89

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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.