Home / 5,649.40-7,795.94-3,131.62

Finding the Fourth Proportional to 5,649.40, 7,795.94 and 3,131.62

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Solution

The fourth proportional to 5,649.40, 7,795.94 and 3,131.62 is: 4,321.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.40 : 7,795.94 = 3,131.62 : x
  2. Step 2: Convert to fraction form
    5,649.40/7,795.94 = 3,131.62/x
  3. Step 3: Cross multiply
    5,649.40x = 7,795.94 × 3,131.62
  4. Step 4: Simplify right side
    5,649.40x = 24,413,921.62
  5. Step 5: Solve for x
    x = 24,413,921.62/5,649.40
  6. Step 6: Final answer
    x = 4,321.51

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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.