Home / 4,519.79-6,779.75-1,399.76

Finding the Fourth Proportional to 4,519.79, 6,779.75 and 1,399.76

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Solution

The fourth proportional to 4,519.79, 6,779.75 and 1,399.76 is: 2,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,519.79 : 6,779.75 = 1,399.76 : x
  2. Step 2: Convert to fraction form
    4,519.79/6,779.75 = 1,399.76/x
  3. Step 3: Cross multiply
    4,519.79x = 6,779.75 × 1,399.76
  4. Step 4: Simplify right side
    4,519.79x = 9,489,981.96
  5. Step 5: Solve for x
    x = 9,489,981.96/4,519.79
  6. Step 6: Final answer
    x = 2,099.65

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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.