Home / 6,078.60-8,387.96-3,426.44

Finding the Fourth Proportional to 6,078.60, 8,387.96 and 3,426.44

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Solution

The fourth proportional to 6,078.60, 8,387.96 and 3,426.44 is: 4,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.60 : 8,387.96 = 3,426.44 : x
  2. Step 2: Convert to fraction form
    6,078.60/8,387.96 = 3,426.44/x
  3. Step 3: Cross multiply
    6,078.60x = 8,387.96 × 3,426.44
  4. Step 4: Simplify right side
    6,078.60x = 28,740,782.59
  5. Step 5: Solve for x
    x = 28,740,782.59/6,078.60
  6. Step 6: Final answer
    x = 4,728.19

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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.