Home / 2,620.80-3,617.10-1,573.44

Finding the Fourth Proportional to 2,620.80, 3,617.10 and 1,573.44

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Solution

The fourth proportional to 2,620.80, 3,617.10 and 1,573.44 is: 2,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.80 : 3,617.10 = 1,573.44 : x
  2. Step 2: Convert to fraction form
    2,620.80/3,617.10 = 1,573.44/x
  3. Step 3: Cross multiply
    2,620.80x = 3,617.10 × 1,573.44
  4. Step 4: Simplify right side
    2,620.80x = 5,691,289.82
  5. Step 5: Solve for x
    x = 5,691,289.82/2,620.80
  6. Step 6: Final answer
    x = 2,171.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.