Home / 3,219.40-4,832.70-3,007.90

Finding the Fourth Proportional to 3,219.40, 4,832.70 and 3,007.90

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Solution

The fourth proportional to 3,219.40, 4,832.70 and 3,007.90 is: 4,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.40 : 4,832.70 = 3,007.90 : x
  2. Step 2: Convert to fraction form
    3,219.40/4,832.70 = 3,007.90/x
  3. Step 3: Cross multiply
    3,219.40x = 4,832.70 × 3,007.90
  4. Step 4: Simplify right side
    3,219.40x = 14,536,278.33
  5. Step 5: Solve for x
    x = 14,536,278.33/3,219.40
  6. Step 6: Final answer
    x = 4,515.21

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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.