Home / 1,926.21-2,658.20-1,086.75

Finding the Fourth Proportional to 1,926.21, 2,658.20 and 1,086.75

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Solution

The fourth proportional to 1,926.21, 2,658.20 and 1,086.75 is: 1,499.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.21 : 2,658.20 = 1,086.75 : x
  2. Step 2: Convert to fraction form
    1,926.21/2,658.20 = 1,086.75/x
  3. Step 3: Cross multiply
    1,926.21x = 2,658.20 × 1,086.75
  4. Step 4: Simplify right side
    1,926.21x = 2,888,785.56
  5. Step 5: Solve for x
    x = 2,888,785.56/1,926.21
  6. Step 6: Final answer
    x = 1,499.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.