Home / 3,385.05-5,077.71-2,730.80

Finding the Fourth Proportional to 3,385.05, 5,077.71 and 2,730.80

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Solution

The fourth proportional to 3,385.05, 5,077.71 and 2,730.80 is: 4,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.05 : 5,077.71 = 2,730.80 : x
  2. Step 2: Convert to fraction form
    3,385.05/5,077.71 = 2,730.80/x
  3. Step 3: Cross multiply
    3,385.05x = 5,077.71 × 2,730.80
  4. Step 4: Simplify right side
    3,385.05x = 13,866,185.08
  5. Step 5: Solve for x
    x = 13,866,185.08/3,385.05
  6. Step 6: Final answer
    x = 4,096.30

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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.