Home / 3,190.63-4,780.44-1,730.80

Finding the Fourth Proportional to 3,190.63, 4,780.44 and 1,730.80

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Solution

The fourth proportional to 3,190.63, 4,780.44 and 1,730.80 is: 2,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.63 : 4,780.44 = 1,730.80 : x
  2. Step 2: Convert to fraction form
    3,190.63/4,780.44 = 1,730.80/x
  3. Step 3: Cross multiply
    3,190.63x = 4,780.44 × 1,730.80
  4. Step 4: Simplify right side
    3,190.63x = 8,273,985.55
  5. Step 5: Solve for x
    x = 8,273,985.55/3,190.63
  6. Step 6: Final answer
    x = 2,593.21

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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.