Home / 4,189.20-6,276.60-2,648.40

Finding the Fourth Proportional to 4,189.20, 6,276.60 and 2,648.40

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Solution

The fourth proportional to 4,189.20, 6,276.60 and 2,648.40 is: 3,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.20 : 6,276.60 = 2,648.40 : x
  2. Step 2: Convert to fraction form
    4,189.20/6,276.60 = 2,648.40/x
  3. Step 3: Cross multiply
    4,189.20x = 6,276.60 × 2,648.40
  4. Step 4: Simplify right side
    4,189.20x = 16,622,947.44
  5. Step 5: Solve for x
    x = 16,622,947.44/4,189.20
  6. Step 6: Final answer
    x = 3,968.05

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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.