Home / 4,911.17-6,779.99-3,789.68

Finding the Fourth Proportional to 4,911.17, 6,779.99 and 3,789.68

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Solution

The fourth proportional to 4,911.17, 6,779.99 and 3,789.68 is: 5,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.17 : 6,779.99 = 3,789.68 : x
  2. Step 2: Convert to fraction form
    4,911.17/6,779.99 = 3,789.68/x
  3. Step 3: Cross multiply
    4,911.17x = 6,779.99 × 3,789.68
  4. Step 4: Simplify right side
    4,911.17x = 25,693,973.55
  5. Step 5: Solve for x
    x = 25,693,973.55/4,911.17
  6. Step 6: Final answer
    x = 5,231.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.