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Finding the Fourth Proportional to 3,679.70, 5,520.96 and 1,730.53

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Solution

The fourth proportional to 3,679.70, 5,520.96 and 1,730.53 is: 2,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.70 : 5,520.96 = 1,730.53 : x
  2. Step 2: Convert to fraction form
    3,679.70/5,520.96 = 1,730.53/x
  3. Step 3: Cross multiply
    3,679.70x = 5,520.96 × 1,730.53
  4. Step 4: Simplify right side
    3,679.70x = 9,554,193.81
  5. Step 5: Solve for x
    x = 9,554,193.81/3,679.70
  6. Step 6: Final answer
    x = 2,596.46

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1.5x scale

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.