Home / 8,085.60-12,129.06-2,242.20

Finding the Fourth Proportional to 8,085.60, 12,129.06 and 2,242.20

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Solution

The fourth proportional to 8,085.60, 12,129.06 and 2,242.20 is: 3,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.60 : 12,129.06 = 2,242.20 : x
  2. Step 2: Convert to fraction form
    8,085.60/12,129.06 = 2,242.20/x
  3. Step 3: Cross multiply
    8,085.60x = 12,129.06 × 2,242.20
  4. Step 4: Simplify right side
    8,085.60x = 27,195,778.33
  5. Step 5: Solve for x
    x = 27,195,778.33/8,085.60
  6. Step 6: Final answer
    x = 3,363.48

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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.