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Finding the Fourth Proportional to 8,833.80, 13,252.60 and 2,990.28

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Solution

The fourth proportional to 8,833.80, 13,252.60 and 2,990.28 is: 4,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.80 : 13,252.60 = 2,990.28 : x
  2. Step 2: Convert to fraction form
    8,833.80/13,252.60 = 2,990.28/x
  3. Step 3: Cross multiply
    8,833.80x = 13,252.60 × 2,990.28
  4. Step 4: Simplify right side
    8,833.80x = 39,628,984.73
  5. Step 5: Solve for x
    x = 39,628,984.73/8,833.80
  6. Step 6: Final answer
    x = 4,486.06

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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.