Home / 3,385.22-4,669.98-2,189.88

Finding the Fourth Proportional to 3,385.22, 4,669.98 and 2,189.88

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Solution

The fourth proportional to 3,385.22, 4,669.98 and 2,189.88 is: 3,020.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.22 : 4,669.98 = 2,189.88 : x
  2. Step 2: Convert to fraction form
    3,385.22/4,669.98 = 2,189.88/x
  3. Step 3: Cross multiply
    3,385.22x = 4,669.98 × 2,189.88
  4. Step 4: Simplify right side
    3,385.22x = 10,226,695.80
  5. Step 5: Solve for x
    x = 10,226,695.80/3,385.22
  6. Step 6: Final answer
    x = 3,020.98

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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.