Home / 3,139.80-4,704.30-1,656.83

Finding the Fourth Proportional to 3,139.80, 4,704.30 and 1,656.83

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Solution

The fourth proportional to 3,139.80, 4,704.30 and 1,656.83 is: 2,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.80 : 4,704.30 = 1,656.83 : x
  2. Step 2: Convert to fraction form
    3,139.80/4,704.30 = 1,656.83/x
  3. Step 3: Cross multiply
    3,139.80x = 4,704.30 × 1,656.83
  4. Step 4: Simplify right side
    3,139.80x = 7,794,201.85
  5. Step 5: Solve for x
    x = 7,794,201.85/3,139.80
  6. Step 6: Final answer
    x = 2,482.39

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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.