Home / 3,428.45-5,142.54-2,385.44

Finding the Fourth Proportional to 3,428.45, 5,142.54 and 2,385.44

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Solution

The fourth proportional to 3,428.45, 5,142.54 and 2,385.44 is: 3,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.45 : 5,142.54 = 2,385.44 : x
  2. Step 2: Convert to fraction form
    3,428.45/5,142.54 = 2,385.44/x
  3. Step 3: Cross multiply
    3,428.45x = 5,142.54 × 2,385.44
  4. Step 4: Simplify right side
    3,428.45x = 12,267,220.62
  5. Step 5: Solve for x
    x = 12,267,220.62/3,428.45
  6. Step 6: Final answer
    x = 3,578.07

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1.5x scale

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.