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Finding the Fourth Proportional to 4,164.60, 6,245.90 and 2,405.80

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Solution

The fourth proportional to 4,164.60, 6,245.90 and 2,405.80 is: 3,608.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,164.60 : 6,245.90 = 2,405.80 : x
  2. Step 2: Convert to fraction form
    4,164.60/6,245.90 = 2,405.80/x
  3. Step 3: Cross multiply
    4,164.60x = 6,245.90 × 2,405.80
  4. Step 4: Simplify right side
    4,164.60x = 15,026,386.22
  5. Step 5: Solve for x
    x = 15,026,386.22/4,164.60
  6. Step 6: Final answer
    x = 3,608.12

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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.