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Finding the Fourth Proportional to 3,625.96, 5,440.74 and 1,679.53

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Solution

The fourth proportional to 3,625.96, 5,440.74 and 1,679.53 is: 2,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.96 : 5,440.74 = 1,679.53 : x
  2. Step 2: Convert to fraction form
    3,625.96/5,440.74 = 1,679.53/x
  3. Step 3: Cross multiply
    3,625.96x = 5,440.74 × 1,679.53
  4. Step 4: Simplify right side
    3,625.96x = 9,137,886.05
  5. Step 5: Solve for x
    x = 9,137,886.05/3,625.96
  6. Step 6: Final answer
    x = 2,520.13

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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.