Home / 3,579.11-4,939.46-1,985.92

Finding the Fourth Proportional to 3,579.11, 4,939.46 and 1,985.92

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Solution

The fourth proportional to 3,579.11, 4,939.46 and 1,985.92 is: 2,740.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.11 : 4,939.46 = 1,985.92 : x
  2. Step 2: Convert to fraction form
    3,579.11/4,939.46 = 1,985.92/x
  3. Step 3: Cross multiply
    3,579.11x = 4,939.46 × 1,985.92
  4. Step 4: Simplify right side
    3,579.11x = 9,809,372.40
  5. Step 5: Solve for x
    x = 9,809,372.40/3,579.11
  6. Step 6: Final answer
    x = 2,740.73

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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.