Home / 5,421.74-7,481.57-3,325.86

Finding the Fourth Proportional to 5,421.74, 7,481.57 and 3,325.86

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Solution

The fourth proportional to 5,421.74, 7,481.57 and 3,325.86 is: 4,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.74 : 7,481.57 = 3,325.86 : x
  2. Step 2: Convert to fraction form
    5,421.74/7,481.57 = 3,325.86/x
  3. Step 3: Cross multiply
    5,421.74x = 7,481.57 × 3,325.86
  4. Step 4: Simplify right side
    5,421.74x = 24,882,637.77
  5. Step 5: Solve for x
    x = 24,882,637.77/5,421.74
  6. Step 6: Final answer
    x = 4,589.42

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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.