Home / 2,429.16-3,351.96-1,381

Finding the Fourth Proportional to 2,429.16, 3,351.96 and 1,381

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Solution

The fourth proportional to 2,429.16, 3,351.96 and 1,381 is: 1,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.16 : 3,351.96 = 1,381 : x
  2. Step 2: Convert to fraction form
    2,429.16/3,351.96 = 1,381/x
  3. Step 3: Cross multiply
    2,429.16x = 3,351.96 × 1,381
  4. Step 4: Simplify right side
    2,429.16x = 4,629,056.76
  5. Step 5: Solve for x
    x = 4,629,056.76/2,429.16
  6. Step 6: Final answer
    x = 1,905.62

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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.