Home / 4,131.20-6,197.88-1,358.30

Finding the Fourth Proportional to 4,131.20, 6,197.88 and 1,358.30

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Solution

The fourth proportional to 4,131.20, 6,197.88 and 1,358.30 is: 2,037.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.20 : 6,197.88 = 1,358.30 : x
  2. Step 2: Convert to fraction form
    4,131.20/6,197.88 = 1,358.30/x
  3. Step 3: Cross multiply
    4,131.20x = 6,197.88 × 1,358.30
  4. Step 4: Simplify right side
    4,131.20x = 8,418,580.40
  5. Step 5: Solve for x
    x = 8,418,580.40/4,131.20
  6. Step 6: Final answer
    x = 2,037.81

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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.