Home / 3,572.82-4,930.34-2,156.85

Finding the Fourth Proportional to 3,572.82, 4,930.34 and 2,156.85

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Solution

The fourth proportional to 3,572.82, 4,930.34 and 2,156.85 is: 2,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.82 : 4,930.34 = 2,156.85 : x
  2. Step 2: Convert to fraction form
    3,572.82/4,930.34 = 2,156.85/x
  3. Step 3: Cross multiply
    3,572.82x = 4,930.34 × 2,156.85
  4. Step 4: Simplify right side
    3,572.82x = 10,633,993.04
  5. Step 5: Solve for x
    x = 10,633,993.04/3,572.82
  6. Step 6: Final answer
    x = 2,976.36

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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.