Home / 7,415.52-11,125.02-2,485.20

Finding the Fourth Proportional to 7,415.52, 11,125.02 and 2,485.20

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Solution

The fourth proportional to 7,415.52, 11,125.02 and 2,485.20 is: 3,728.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.52 : 11,125.02 = 2,485.20 : x
  2. Step 2: Convert to fraction form
    7,415.52/11,125.02 = 2,485.20/x
  3. Step 3: Cross multiply
    7,415.52x = 11,125.02 × 2,485.20
  4. Step 4: Simplify right side
    7,415.52x = 27,647,899.70
  5. Step 5: Solve for x
    x = 27,647,899.70/7,415.52
  6. Step 6: Final answer
    x = 3,728.38

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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.