Home / 3,415.34-4,716.26-2,158.62

Finding the Fourth Proportional to 3,415.34, 4,716.26 and 2,158.62

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Solution

The fourth proportional to 3,415.34, 4,716.26 and 2,158.62 is: 2,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.34 : 4,716.26 = 2,158.62 : x
  2. Step 2: Convert to fraction form
    3,415.34/4,716.26 = 2,158.62/x
  3. Step 3: Cross multiply
    3,415.34x = 4,716.26 × 2,158.62
  4. Step 4: Simplify right side
    3,415.34x = 10,180,613.16
  5. Step 5: Solve for x
    x = 10,180,613.16/3,415.34
  6. Step 6: Final answer
    x = 2,980.85

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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.