Home / 3,214.10-4,822.97-2,118.98

Finding the Fourth Proportional to 3,214.10, 4,822.97 and 2,118.98

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Solution

The fourth proportional to 3,214.10, 4,822.97 and 2,118.98 is: 3,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.10 : 4,822.97 = 2,118.98 : x
  2. Step 2: Convert to fraction form
    3,214.10/4,822.97 = 2,118.98/x
  3. Step 3: Cross multiply
    3,214.10x = 4,822.97 × 2,118.98
  4. Step 4: Simplify right side
    3,214.10x = 10,219,742.26
  5. Step 5: Solve for x
    x = 10,219,742.26/3,214.10
  6. Step 6: Final answer
    x = 3,179.66

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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.