Home / 4,139.72-6,212.82-1,542.80

Finding the Fourth Proportional to 4,139.72, 6,212.82 and 1,542.80

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Solution

The fourth proportional to 4,139.72, 6,212.82 and 1,542.80 is: 2,315.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.72 : 6,212.82 = 1,542.80 : x
  2. Step 2: Convert to fraction form
    4,139.72/6,212.82 = 1,542.80/x
  3. Step 3: Cross multiply
    4,139.72x = 6,212.82 × 1,542.80
  4. Step 4: Simplify right side
    4,139.72x = 9,585,138.70
  5. Step 5: Solve for x
    x = 9,585,138.70/4,139.72
  6. Step 6: Final answer
    x = 2,315.41

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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.