Home / 3,979.30-5,493.93-3,604.90

Finding the Fourth Proportional to 3,979.30, 5,493.93 and 3,604.90

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Solution

The fourth proportional to 3,979.30, 5,493.93 and 3,604.90 is: 4,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.30 : 5,493.93 = 3,604.90 : x
  2. Step 2: Convert to fraction form
    3,979.30/5,493.93 = 3,604.90/x
  3. Step 3: Cross multiply
    3,979.30x = 5,493.93 × 3,604.90
  4. Step 4: Simplify right side
    3,979.30x = 19,805,068.26
  5. Step 5: Solve for x
    x = 19,805,068.26/3,979.30
  6. Step 6: Final answer
    x = 4,977.02

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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.