Home / 3,586.26-5,381.50-1,638.60

Finding the Fourth Proportional to 3,586.26, 5,381.50 and 1,638.60

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Solution

The fourth proportional to 3,586.26, 5,381.50 and 1,638.60 is: 2,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.26 : 5,381.50 = 1,638.60 : x
  2. Step 2: Convert to fraction form
    3,586.26/5,381.50 = 1,638.60/x
  3. Step 3: Cross multiply
    3,586.26x = 5,381.50 × 1,638.60
  4. Step 4: Simplify right side
    3,586.26x = 8,818,125.90
  5. Step 5: Solve for x
    x = 8,818,125.90/3,586.26
  6. Step 6: Final answer
    x = 2,458.86

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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.