Home / 2,782.36-4,173.54-1,687.04

Finding the Fourth Proportional to 2,782.36, 4,173.54 and 1,687.04

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Solution

The fourth proportional to 2,782.36, 4,173.54 and 1,687.04 is: 2,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.36 : 4,173.54 = 1,687.04 : x
  2. Step 2: Convert to fraction form
    2,782.36/4,173.54 = 1,687.04/x
  3. Step 3: Cross multiply
    2,782.36x = 4,173.54 × 1,687.04
  4. Step 4: Simplify right side
    2,782.36x = 7,040,901.73
  5. Step 5: Solve for x
    x = 7,040,901.73/2,782.36
  6. Step 6: Final answer
    x = 2,530.55

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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.