Home / 4,139.25-6,209.06-1,217.81

Finding the Fourth Proportional to 4,139.25, 6,209.06 and 1,217.81

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Solution

The fourth proportional to 4,139.25, 6,209.06 and 1,217.81 is: 1,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.25 : 6,209.06 = 1,217.81 : x
  2. Step 2: Convert to fraction form
    4,139.25/6,209.06 = 1,217.81/x
  3. Step 3: Cross multiply
    4,139.25x = 6,209.06 × 1,217.81
  4. Step 4: Simplify right side
    4,139.25x = 7,561,418.22
  5. Step 5: Solve for x
    x = 7,561,418.22/4,139.25
  6. Step 6: Final answer
    x = 1,826.76

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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.