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Finding the Fourth Proportional to 8,085.66, 12,128.48 and 2,242.27

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Solution

The fourth proportional to 8,085.66, 12,128.48 and 2,242.27 is: 3,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.66 : 12,128.48 = 2,242.27 : x
  2. Step 2: Convert to fraction form
    8,085.66/12,128.48 = 2,242.27/x
  3. Step 3: Cross multiply
    8,085.66x = 12,128.48 × 2,242.27
  4. Step 4: Simplify right side
    8,085.66x = 27,195,283.60
  5. Step 5: Solve for x
    x = 27,195,283.60/8,085.66
  6. Step 6: Final answer
    x = 3,363.40

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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.