Home / 3,141.21-4,712.60-2,218.58

Finding the Fourth Proportional to 3,141.21, 4,712.60 and 2,218.58

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Solution

The fourth proportional to 3,141.21, 4,712.60 and 2,218.58 is: 3,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.21 : 4,712.60 = 2,218.58 : x
  2. Step 2: Convert to fraction form
    3,141.21/4,712.60 = 2,218.58/x
  3. Step 3: Cross multiply
    3,141.21x = 4,712.60 × 2,218.58
  4. Step 4: Simplify right side
    3,141.21x = 10,455,245.45
  5. Step 5: Solve for x
    x = 10,455,245.45/3,141.21
  6. Step 6: Final answer
    x = 3,328.41

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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.