Home / 5,619.39-8,432.82-3,156.39

Finding the Fourth Proportional to 5,619.39, 8,432.82 and 3,156.39

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Solution

The fourth proportional to 5,619.39, 8,432.82 and 3,156.39 is: 4,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.39 : 8,432.82 = 3,156.39 : x
  2. Step 2: Convert to fraction form
    5,619.39/8,432.82 = 3,156.39/x
  3. Step 3: Cross multiply
    5,619.39x = 8,432.82 × 3,156.39
  4. Step 4: Simplify right side
    5,619.39x = 26,617,268.72
  5. Step 5: Solve for x
    x = 26,617,268.72/5,619.39
  6. Step 6: Final answer
    x = 4,736.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.