Home / 3,219.64-4,830.84-1,371.16

Finding the Fourth Proportional to 3,219.64, 4,830.84 and 1,371.16

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Solution

The fourth proportional to 3,219.64, 4,830.84 and 1,371.16 is: 2,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.64 : 4,830.84 = 1,371.16 : x
  2. Step 2: Convert to fraction form
    3,219.64/4,830.84 = 1,371.16/x
  3. Step 3: Cross multiply
    3,219.64x = 4,830.84 × 1,371.16
  4. Step 4: Simplify right side
    3,219.64x = 6,623,854.57
  5. Step 5: Solve for x
    x = 6,623,854.57/3,219.64
  6. Step 6: Final answer
    x = 2,057.33

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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.