Home / 3,578.20-5,370.90-1,730.80

Finding the Fourth Proportional to 3,578.20, 5,370.90 and 1,730.80

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Solution

The fourth proportional to 3,578.20, 5,370.90 and 1,730.80 is: 2,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.20 : 5,370.90 = 1,730.80 : x
  2. Step 2: Convert to fraction form
    3,578.20/5,370.90 = 1,730.80/x
  3. Step 3: Cross multiply
    3,578.20x = 5,370.90 × 1,730.80
  4. Step 4: Simplify right side
    3,578.20x = 9,295,953.72
  5. Step 5: Solve for x
    x = 9,295,953.72/3,578.20
  6. Step 6: Final answer
    x = 2,597.94

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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.