Home / 3,100.15-4,649.99-1,020.13

Finding the Fourth Proportional to 3,100.15, 4,649.99 and 1,020.13

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Solution

The fourth proportional to 3,100.15, 4,649.99 and 1,020.13 is: 1,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.15 : 4,649.99 = 1,020.13 : x
  2. Step 2: Convert to fraction form
    3,100.15/4,649.99 = 1,020.13/x
  3. Step 3: Cross multiply
    3,100.15x = 4,649.99 × 1,020.13
  4. Step 4: Simplify right side
    3,100.15x = 4,743,571.05
  5. Step 5: Solve for x
    x = 4,743,571.05/3,100.15
  6. Step 6: Final answer
    x = 1,530.11

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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.