Home / 4,711.45-7,067.85-1,424.80

Finding the Fourth Proportional to 4,711.45, 7,067.85 and 1,424.80

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Solution

The fourth proportional to 4,711.45, 7,067.85 and 1,424.80 is: 2,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,711.45 : 7,067.85 = 1,424.80 : x
  2. Step 2: Convert to fraction form
    4,711.45/7,067.85 = 1,424.80/x
  3. Step 3: Cross multiply
    4,711.45x = 7,067.85 × 1,424.80
  4. Step 4: Simplify right side
    4,711.45x = 10,070,272.68
  5. Step 5: Solve for x
    x = 10,070,272.68/4,711.45
  6. Step 6: Final answer
    x = 2,137.40

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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.