Home / 2,687.88-3,707.38-2,467.56

Finding the Fourth Proportional to 2,687.88, 3,707.38 and 2,467.56

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Solution

The fourth proportional to 2,687.88, 3,707.38 and 2,467.56 is: 3,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.88 : 3,707.38 = 2,467.56 : x
  2. Step 2: Convert to fraction form
    2,687.88/3,707.38 = 2,467.56/x
  3. Step 3: Cross multiply
    2,687.88x = 3,707.38 × 2,467.56
  4. Step 4: Simplify right side
    2,687.88x = 9,148,182.59
  5. Step 5: Solve for x
    x = 9,148,182.59/2,687.88
  6. Step 6: Final answer
    x = 3,403.49

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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.