Home / 3,160.80-4,736.40-2,671.20

Finding the Fourth Proportional to 3,160.80, 4,736.40 and 2,671.20

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Solution

The fourth proportional to 3,160.80, 4,736.40 and 2,671.20 is: 4,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.80 : 4,736.40 = 2,671.20 : x
  2. Step 2: Convert to fraction form
    3,160.80/4,736.40 = 2,671.20/x
  3. Step 3: Cross multiply
    3,160.80x = 4,736.40 × 2,671.20
  4. Step 4: Simplify right side
    3,160.80x = 12,651,871.68
  5. Step 5: Solve for x
    x = 12,651,871.68/3,160.80
  6. Step 6: Final answer
    x = 4,002.74

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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.