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Finding the Fourth Proportional to 3,076.15, 4,615.01 and 885.04

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Solution

The fourth proportional to 3,076.15, 4,615.01 and 885.04 is: 1,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.15 : 4,615.01 = 885.04 : x
  2. Step 2: Convert to fraction form
    3,076.15/4,615.01 = 885.04/x
  3. Step 3: Cross multiply
    3,076.15x = 4,615.01 × 885.04
  4. Step 4: Simplify right side
    3,076.15x = 4,084,440.95
  5. Step 5: Solve for x
    x = 4,084,440.95/3,076.15
  6. Step 6: Final answer
    x = 1,327.78

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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.