Home / 3,374.64-5,063.85-1,428.30

Finding the Fourth Proportional to 3,374.64, 5,063.85 and 1,428.30

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Solution

The fourth proportional to 3,374.64, 5,063.85 and 1,428.30 is: 2,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.64 : 5,063.85 = 1,428.30 : x
  2. Step 2: Convert to fraction form
    3,374.64/5,063.85 = 1,428.30/x
  3. Step 3: Cross multiply
    3,374.64x = 5,063.85 × 1,428.30
  4. Step 4: Simplify right side
    3,374.64x = 7,232,696.96
  5. Step 5: Solve for x
    x = 7,232,696.96/3,374.64
  6. Step 6: Final answer
    x = 2,143.25

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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.