Home / 3,761.19-5,641.07-1,911.77

Finding the Fourth Proportional to 3,761.19, 5,641.07 and 1,911.77

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Solution

The fourth proportional to 3,761.19, 5,641.07 and 1,911.77 is: 2,867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.19 : 5,641.07 = 1,911.77 : x
  2. Step 2: Convert to fraction form
    3,761.19/5,641.07 = 1,911.77/x
  3. Step 3: Cross multiply
    3,761.19x = 5,641.07 × 1,911.77
  4. Step 4: Simplify right side
    3,761.19x = 10,784,390.63
  5. Step 5: Solve for x
    x = 10,784,390.63/3,761.19
  6. Step 6: Final answer
    x = 2,867.28

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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.