Home / 6,077.78-8,387.80-3,425.44

Finding the Fourth Proportional to 6,077.78, 8,387.80 and 3,425.44

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Solution

The fourth proportional to 6,077.78, 8,387.80 and 3,425.44 is: 4,727.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,077.78 : 8,387.80 = 3,425.44 : x
  2. Step 2: Convert to fraction form
    6,077.78/8,387.80 = 3,425.44/x
  3. Step 3: Cross multiply
    6,077.78x = 8,387.80 × 3,425.44
  4. Step 4: Simplify right side
    6,077.78x = 28,731,905.63
  5. Step 5: Solve for x
    x = 28,731,905.63/6,077.78
  6. Step 6: Final answer
    x = 4,727.37

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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.