Home / 1,371.09-2,056.35-396.96

Finding the Fourth Proportional to 1,371.09, 2,056.35 and 396.96

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Solution

The fourth proportional to 1,371.09, 2,056.35 and 396.96 is: 595.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.09 : 2,056.35 = 396.96 : x
  2. Step 2: Convert to fraction form
    1,371.09/2,056.35 = 396.96/x
  3. Step 3: Cross multiply
    1,371.09x = 2,056.35 × 396.96
  4. Step 4: Simplify right side
    1,371.09x = 816,288.70
  5. Step 5: Solve for x
    x = 816,288.70/1,371.09
  6. Step 6: Final answer
    x = 595.36

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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.