Home / 3,456.46-4,770.05-2,112.87

Finding the Fourth Proportional to 3,456.46, 4,770.05 and 2,112.87

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Solution

The fourth proportional to 3,456.46, 4,770.05 and 2,112.87 is: 2,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.46 : 4,770.05 = 2,112.87 : x
  2. Step 2: Convert to fraction form
    3,456.46/4,770.05 = 2,112.87/x
  3. Step 3: Cross multiply
    3,456.46x = 4,770.05 × 2,112.87
  4. Step 4: Simplify right side
    3,456.46x = 10,078,495.54
  5. Step 5: Solve for x
    x = 10,078,495.54/3,456.46
  6. Step 6: Final answer
    x = 2,915.84

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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.