Home / 3,139.53-4,704.06-1,381.92

Finding the Fourth Proportional to 3,139.53, 4,704.06 and 1,381.92

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Solution

The fourth proportional to 3,139.53, 4,704.06 and 1,381.92 is: 2,070.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.53 : 4,704.06 = 1,381.92 : x
  2. Step 2: Convert to fraction form
    3,139.53/4,704.06 = 1,381.92/x
  3. Step 3: Cross multiply
    3,139.53x = 4,704.06 × 1,381.92
  4. Step 4: Simplify right side
    3,139.53x = 6,500,634.60
  5. Step 5: Solve for x
    x = 6,500,634.60/3,139.53
  6. Step 6: Final answer
    x = 2,070.58

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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.