Home / 5,421.87-7,481.35-3,063.15

Finding the Fourth Proportional to 5,421.87, 7,481.35 and 3,063.15

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Solution

The fourth proportional to 5,421.87, 7,481.35 and 3,063.15 is: 4,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.87 : 7,481.35 = 3,063.15 : x
  2. Step 2: Convert to fraction form
    5,421.87/7,481.35 = 3,063.15/x
  3. Step 3: Cross multiply
    5,421.87x = 7,481.35 × 3,063.15
  4. Step 4: Simplify right side
    5,421.87x = 22,916,497.25
  5. Step 5: Solve for x
    x = 22,916,497.25/5,421.87
  6. Step 6: Final answer
    x = 4,226.68

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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.