Home / 2,649.90-3,657.39-2,207.34

Finding the Fourth Proportional to 2,649.90, 3,657.39 and 2,207.34

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Solution

The fourth proportional to 2,649.90, 3,657.39 and 2,207.34 is: 3,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.90 : 3,657.39 = 2,207.34 : x
  2. Step 2: Convert to fraction form
    2,649.90/3,657.39 = 2,207.34/x
  3. Step 3: Cross multiply
    2,649.90x = 3,657.39 × 2,207.34
  4. Step 4: Simplify right side
    2,649.90x = 8,073,103.24
  5. Step 5: Solve for x
    x = 8,073,103.24/2,649.90
  6. Step 6: Final answer
    x = 3,046.57

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Half scale
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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.