Home / 4,120.68-6,179.25-1,308.87

Finding the Fourth Proportional to 4,120.68, 6,179.25 and 1,308.87

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Solution

The fourth proportional to 4,120.68, 6,179.25 and 1,308.87 is: 1,962.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.68 : 6,179.25 = 1,308.87 : x
  2. Step 2: Convert to fraction form
    4,120.68/6,179.25 = 1,308.87/x
  3. Step 3: Cross multiply
    4,120.68x = 6,179.25 × 1,308.87
  4. Step 4: Simplify right side
    4,120.68x = 8,087,834.95
  5. Step 5: Solve for x
    x = 8,087,834.95/4,120.68
  6. Step 6: Final answer
    x = 1,962.74

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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.