Home / 4,139.26-6,209.10-1,217.86

Finding the Fourth Proportional to 4,139.26, 6,209.10 and 1,217.86

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Solution

The fourth proportional to 4,139.26, 6,209.10 and 1,217.86 is: 1,826.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.26 : 6,209.10 = 1,217.86 : x
  2. Step 2: Convert to fraction form
    4,139.26/6,209.10 = 1,217.86/x
  3. Step 3: Cross multiply
    4,139.26x = 6,209.10 × 1,217.86
  4. Step 4: Simplify right side
    4,139.26x = 7,561,814.53
  5. Step 5: Solve for x
    x = 7,561,814.53/4,139.26
  6. Step 6: Final answer
    x = 1,826.85

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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.