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Finding the Fourth Proportional to 5,679.41, 8,520.39 and 1,731.01

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Solution

The fourth proportional to 5,679.41, 8,520.39 and 1,731.01 is: 2,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.41 : 8,520.39 = 1,731.01 : x
  2. Step 2: Convert to fraction form
    5,679.41/8,520.39 = 1,731.01/x
  3. Step 3: Cross multiply
    5,679.41x = 8,520.39 × 1,731.01
  4. Step 4: Simplify right side
    5,679.41x = 14,748,858.99
  5. Step 5: Solve for x
    x = 14,748,858.99/5,679.41
  6. Step 6: Final answer
    x = 2,596.90

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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.