Home / 4,131.28-6,197.28-1,357.20

Finding the Fourth Proportional to 4,131.28, 6,197.28 and 1,357.20

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Solution

The fourth proportional to 4,131.28, 6,197.28 and 1,357.20 is: 2,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.28 : 6,197.28 = 1,357.20 : x
  2. Step 2: Convert to fraction form
    4,131.28/6,197.28 = 1,357.20/x
  3. Step 3: Cross multiply
    4,131.28x = 6,197.28 × 1,357.20
  4. Step 4: Simplify right side
    4,131.28x = 8,410,948.42
  5. Step 5: Solve for x
    x = 8,410,948.42/4,131.28
  6. Step 6: Final answer
    x = 2,035.92

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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.