Home / 5,538.42-8,307.66-1,378.43

Finding the Fourth Proportional to 5,538.42, 8,307.66 and 1,378.43

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Solution

The fourth proportional to 5,538.42, 8,307.66 and 1,378.43 is: 2,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.42 : 8,307.66 = 1,378.43 : x
  2. Step 2: Convert to fraction form
    5,538.42/8,307.66 = 1,378.43/x
  3. Step 3: Cross multiply
    5,538.42x = 8,307.66 × 1,378.43
  4. Step 4: Simplify right side
    5,538.42x = 11,451,527.77
  5. Step 5: Solve for x
    x = 11,451,527.77/5,538.42
  6. Step 6: Final answer
    x = 2,067.65

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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.