Home / 3,520.80-5,270.40-2,055.60

Finding the Fourth Proportional to 3,520.80, 5,270.40 and 2,055.60

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Solution

The fourth proportional to 3,520.80, 5,270.40 and 2,055.60 is: 3,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.80 : 5,270.40 = 2,055.60 : x
  2. Step 2: Convert to fraction form
    3,520.80/5,270.40 = 2,055.60/x
  3. Step 3: Cross multiply
    3,520.80x = 5,270.40 × 2,055.60
  4. Step 4: Simplify right side
    3,520.80x = 10,833,834.24
  5. Step 5: Solve for x
    x = 10,833,834.24/3,520.80
  6. Step 6: Final answer
    x = 3,077.09

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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.