Home / 3,939-5,434.87-2,594.47

Finding the Fourth Proportional to 3,939, 5,434.87 and 2,594.47

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Solution

The fourth proportional to 3,939, 5,434.87 and 2,594.47 is: 3,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939 : 5,434.87 = 2,594.47 : x
  2. Step 2: Convert to fraction form
    3,939/5,434.87 = 2,594.47/x
  3. Step 3: Cross multiply
    3,939x = 5,434.87 × 2,594.47
  4. Step 4: Simplify right side
    3,939x = 14,100,567.02
  5. Step 5: Solve for x
    x = 14,100,567.02/3,939
  6. Step 6: Final answer
    x = 3,579.73

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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.