Home / 4,449.20-6,668.12-2,109.20

Finding the Fourth Proportional to 4,449.20, 6,668.12 and 2,109.20

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Solution

The fourth proportional to 4,449.20, 6,668.12 and 2,109.20 is: 3,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,449.20 : 6,668.12 = 2,109.20 : x
  2. Step 2: Convert to fraction form
    4,449.20/6,668.12 = 2,109.20/x
  3. Step 3: Cross multiply
    4,449.20x = 6,668.12 × 2,109.20
  4. Step 4: Simplify right side
    4,449.20x = 14,064,398.70
  5. Step 5: Solve for x
    x = 14,064,398.70/4,449.20
  6. Step 6: Final answer
    x = 3,161.11

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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.