Home / 4,519.12-6,779.31-1,399.39

Finding the Fourth Proportional to 4,519.12, 6,779.31 and 1,399.39

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Solution

The fourth proportional to 4,519.12, 6,779.31 and 1,399.39 is: 2,099.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,519.12 : 6,779.31 = 1,399.39 : x
  2. Step 2: Convert to fraction form
    4,519.12/6,779.31 = 1,399.39/x
  3. Step 3: Cross multiply
    4,519.12x = 6,779.31 × 1,399.39
  4. Step 4: Simplify right side
    4,519.12x = 9,486,898.62
  5. Step 5: Solve for x
    x = 9,486,898.62/4,519.12
  6. Step 6: Final answer
    x = 2,099.28

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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.