Home / 2,179.54-3,265.26-1,690.30

Finding the Fourth Proportional to 2,179.54, 3,265.26 and 1,690.30

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Solution

The fourth proportional to 2,179.54, 3,265.26 and 1,690.30 is: 2,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.54 : 3,265.26 = 1,690.30 : x
  2. Step 2: Convert to fraction form
    2,179.54/3,265.26 = 1,690.30/x
  3. Step 3: Cross multiply
    2,179.54x = 3,265.26 × 1,690.30
  4. Step 4: Simplify right side
    2,179.54x = 5,519,268.98
  5. Step 5: Solve for x
    x = 5,519,268.98/2,179.54
  6. Step 6: Final answer
    x = 2,532.31

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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.