Home / 3,979.61-5,493.33-3,417.82

Finding the Fourth Proportional to 3,979.61, 5,493.33 and 3,417.82

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Solution

The fourth proportional to 3,979.61, 5,493.33 and 3,417.82 is: 4,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.61 : 5,493.33 = 3,417.82 : x
  2. Step 2: Convert to fraction form
    3,979.61/5,493.33 = 3,417.82/x
  3. Step 3: Cross multiply
    3,979.61x = 5,493.33 × 3,417.82
  4. Step 4: Simplify right side
    3,979.61x = 18,775,213.14
  5. Step 5: Solve for x
    x = 18,775,213.14/3,979.61
  6. Step 6: Final answer
    x = 4,717.85

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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.