Home / 3,103.49-4,655.70-2,157.68

Finding the Fourth Proportional to 3,103.49, 4,655.70 and 2,157.68

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Solution

The fourth proportional to 3,103.49, 4,655.70 and 2,157.68 is: 3,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.49 : 4,655.70 = 2,157.68 : x
  2. Step 2: Convert to fraction form
    3,103.49/4,655.70 = 2,157.68/x
  3. Step 3: Cross multiply
    3,103.49x = 4,655.70 × 2,157.68
  4. Step 4: Simplify right side
    3,103.49x = 10,045,487.50
  5. Step 5: Solve for x
    x = 10,045,487.50/3,103.49
  6. Step 6: Final answer
    x = 3,236.84

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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.