Home / 3,153.87-4,352.54-2,760.21

Finding the Fourth Proportional to 3,153.87, 4,352.54 and 2,760.21

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Solution

The fourth proportional to 3,153.87, 4,352.54 and 2,760.21 is: 3,809.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.87 : 4,352.54 = 2,760.21 : x
  2. Step 2: Convert to fraction form
    3,153.87/4,352.54 = 2,760.21/x
  3. Step 3: Cross multiply
    3,153.87x = 4,352.54 × 2,760.21
  4. Step 4: Simplify right side
    3,153.87x = 12,013,910.63
  5. Step 5: Solve for x
    x = 12,013,910.63/3,153.87
  6. Step 6: Final answer
    x = 3,809.26

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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.