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Finding the Fourth Proportional to 7,480.08, 11,220.09 and 1,932.95

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Solution

The fourth proportional to 7,480.08, 11,220.09 and 1,932.95 is: 2,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.08 : 11,220.09 = 1,932.95 : x
  2. Step 2: Convert to fraction form
    7,480.08/11,220.09 = 1,932.95/x
  3. Step 3: Cross multiply
    7,480.08x = 11,220.09 × 1,932.95
  4. Step 4: Simplify right side
    7,480.08x = 21,687,893.77
  5. Step 5: Solve for x
    x = 21,687,893.77/7,480.08
  6. Step 6: Final answer
    x = 2,899.42

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1.5x scale

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.