Home / 3,591.90-5,385.68-1,370.88

Finding the Fourth Proportional to 3,591.90, 5,385.68 and 1,370.88

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Solution

The fourth proportional to 3,591.90, 5,385.68 and 1,370.88 is: 2,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.90 : 5,385.68 = 1,370.88 : x
  2. Step 2: Convert to fraction form
    3,591.90/5,385.68 = 1,370.88/x
  3. Step 3: Cross multiply
    3,591.90x = 5,385.68 × 1,370.88
  4. Step 4: Simplify right side
    3,591.90x = 7,383,121.00
  5. Step 5: Solve for x
    x = 7,383,121.00/3,591.90
  6. Step 6: Final answer
    x = 2,055.49

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1.5x scale

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.