Home / 4,519.21-6,779.16-1,399.21

Finding the Fourth Proportional to 4,519.21, 6,779.16 and 1,399.21

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Solution

The fourth proportional to 4,519.21, 6,779.16 and 1,399.21 is: 2,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,519.21 : 6,779.16 = 1,399.21 : x
  2. Step 2: Convert to fraction form
    4,519.21/6,779.16 = 1,399.21/x
  3. Step 3: Cross multiply
    4,519.21x = 6,779.16 × 1,399.21
  4. Step 4: Simplify right side
    4,519.21x = 9,485,468.46
  5. Step 5: Solve for x
    x = 9,485,468.46/4,519.21
  6. Step 6: Final answer
    x = 2,098.92

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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.