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Finding the Fourth Proportional to 6,080.50, 8,387.85 and 4,087.63

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Solution

The fourth proportional to 6,080.50, 8,387.85 and 4,087.63 is: 5,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,080.50 : 8,387.85 = 4,087.63 : x
  2. Step 2: Convert to fraction form
    6,080.50/8,387.85 = 4,087.63/x
  3. Step 3: Cross multiply
    6,080.50x = 8,387.85 × 4,087.63
  4. Step 4: Simplify right side
    6,080.50x = 34,286,427.30
  5. Step 5: Solve for x
    x = 34,286,427.30/6,080.50
  6. Step 6: Final answer
    x = 5,638.75

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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.