Home / 3,581.76-5,370.72-1,634.40

Finding the Fourth Proportional to 3,581.76, 5,370.72 and 1,634.40

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Solution

The fourth proportional to 3,581.76, 5,370.72 and 1,634.40 is: 2,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.76 : 5,370.72 = 1,634.40 : x
  2. Step 2: Convert to fraction form
    3,581.76/5,370.72 = 1,634.40/x
  3. Step 3: Cross multiply
    3,581.76x = 5,370.72 × 1,634.40
  4. Step 4: Simplify right side
    3,581.76x = 8,777,904.77
  5. Step 5: Solve for x
    x = 8,777,904.77/3,581.76
  6. Step 6: Final answer
    x = 2,450.72

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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.