Home / 3,756.74-5,634.88-1,291.61

Finding the Fourth Proportional to 3,756.74, 5,634.88 and 1,291.61

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Solution

The fourth proportional to 3,756.74, 5,634.88 and 1,291.61 is: 1,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.74 : 5,634.88 = 1,291.61 : x
  2. Step 2: Convert to fraction form
    3,756.74/5,634.88 = 1,291.61/x
  3. Step 3: Cross multiply
    3,756.74x = 5,634.88 × 1,291.61
  4. Step 4: Simplify right side
    3,756.74x = 7,278,078.21
  5. Step 5: Solve for x
    x = 7,278,078.21/3,756.74
  6. Step 6: Final answer
    x = 1,937.34

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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.