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Finding the Fourth Proportional to 6,480.60, 8,942.22 and 3,685.56

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Solution

The fourth proportional to 6,480.60, 8,942.22 and 3,685.56 is: 5,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.60 : 8,942.22 = 3,685.56 : x
  2. Step 2: Convert to fraction form
    6,480.60/8,942.22 = 3,685.56/x
  3. Step 3: Cross multiply
    6,480.60x = 8,942.22 × 3,685.56
  4. Step 4: Simplify right side
    6,480.60x = 32,957,088.34
  5. Step 5: Solve for x
    x = 32,957,088.34/6,480.60
  6. Step 6: Final answer
    x = 5,085.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.