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Finding the Fourth Proportional to 8,992.80, 13,485.78 and 2,750.91

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Solution

The fourth proportional to 8,992.80, 13,485.78 and 2,750.91 is: 4,125.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.80 : 13,485.78 = 2,750.91 : x
  2. Step 2: Convert to fraction form
    8,992.80/13,485.78 = 2,750.91/x
  3. Step 3: Cross multiply
    8,992.80x = 13,485.78 × 2,750.91
  4. Step 4: Simplify right side
    8,992.80x = 37,098,167.06
  5. Step 5: Solve for x
    x = 37,098,167.06/8,992.80
  6. Step 6: Final answer
    x = 4,125.32

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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.