Home / 3,489.34-4,813.59-2,311.39

Finding the Fourth Proportional to 3,489.34, 4,813.59 and 2,311.39

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Solution

The fourth proportional to 3,489.34, 4,813.59 and 2,311.39 is: 3,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.34 : 4,813.59 = 2,311.39 : x
  2. Step 2: Convert to fraction form
    3,489.34/4,813.59 = 2,311.39/x
  3. Step 3: Cross multiply
    3,489.34x = 4,813.59 × 2,311.39
  4. Step 4: Simplify right side
    3,489.34x = 11,126,083.79
  5. Step 5: Solve for x
    x = 11,126,083.79/3,489.34
  6. Step 6: Final answer
    x = 3,188.59

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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.