Home / 3,100.29-4,650.40-1,250.09

Finding the Fourth Proportional to 3,100.29, 4,650.40 and 1,250.09

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Solution

The fourth proportional to 3,100.29, 4,650.40 and 1,250.09 is: 1,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.29 : 4,650.40 = 1,250.09 : x
  2. Step 2: Convert to fraction form
    3,100.29/4,650.40 = 1,250.09/x
  3. Step 3: Cross multiply
    3,100.29x = 4,650.40 × 1,250.09
  4. Step 4: Simplify right side
    3,100.29x = 5,813,418.54
  5. Step 5: Solve for x
    x = 5,813,418.54/3,100.29
  6. Step 6: Final answer
    x = 1,875.12

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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.