Home / 4,679.11-6,456.94-2,689.21

Finding the Fourth Proportional to 4,679.11, 6,456.94 and 2,689.21

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Solution

The fourth proportional to 4,679.11, 6,456.94 and 2,689.21 is: 3,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.11 : 6,456.94 = 2,689.21 : x
  2. Step 2: Convert to fraction form
    4,679.11/6,456.94 = 2,689.21/x
  3. Step 3: Cross multiply
    4,679.11x = 6,456.94 × 2,689.21
  4. Step 4: Simplify right side
    4,679.11x = 17,364,067.62
  5. Step 5: Solve for x
    x = 17,364,067.62/4,679.11
  6. Step 6: Final answer
    x = 3,710.98

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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.