Home / 3,579.23-4,939.38-1,985.91

Finding the Fourth Proportional to 3,579.23, 4,939.38 and 1,985.91

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Solution

The fourth proportional to 3,579.23, 4,939.38 and 1,985.91 is: 2,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.23 : 4,939.38 = 1,985.91 : x
  2. Step 2: Convert to fraction form
    3,579.23/4,939.38 = 1,985.91/x
  3. Step 3: Cross multiply
    3,579.23x = 4,939.38 × 1,985.91
  4. Step 4: Simplify right side
    3,579.23x = 9,809,164.14
  5. Step 5: Solve for x
    x = 9,809,164.14/3,579.23
  6. Step 6: Final answer
    x = 2,740.58

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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.