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Finding the Fourth Proportional to 5,579.82, 7,701.21 and 3,691.44

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Solution

The fourth proportional to 5,579.82, 7,701.21 and 3,691.44 is: 5,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.82 : 7,701.21 = 3,691.44 : x
  2. Step 2: Convert to fraction form
    5,579.82/7,701.21 = 3,691.44/x
  3. Step 3: Cross multiply
    5,579.82x = 7,701.21 × 3,691.44
  4. Step 4: Simplify right side
    5,579.82x = 28,428,554.64
  5. Step 5: Solve for x
    x = 28,428,554.64/5,579.82
  6. Step 6: Final answer
    x = 5,094.89

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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.