Home / 3,478.21-5,218.81-2,308.62

Finding the Fourth Proportional to 3,478.21, 5,218.81 and 2,308.62

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Solution

The fourth proportional to 3,478.21, 5,218.81 and 2,308.62 is: 3,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.21 : 5,218.81 = 2,308.62 : x
  2. Step 2: Convert to fraction form
    3,478.21/5,218.81 = 2,308.62/x
  3. Step 3: Cross multiply
    3,478.21x = 5,218.81 × 2,308.62
  4. Step 4: Simplify right side
    3,478.21x = 12,048,249.14
  5. Step 5: Solve for x
    x = 12,048,249.14/3,478.21
  6. Step 6: Final answer
    x = 3,463.92

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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.