Home / 1,379.72-2,056.30-1,368.26

Finding the Fourth Proportional to 1,379.72, 2,056.30 and 1,368.26

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Solution

The fourth proportional to 1,379.72, 2,056.30 and 1,368.26 is: 2,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.72 : 2,056.30 = 1,368.26 : x
  2. Step 2: Convert to fraction form
    1,379.72/2,056.30 = 1,368.26/x
  3. Step 3: Cross multiply
    1,379.72x = 2,056.30 × 1,368.26
  4. Step 4: Simplify right side
    1,379.72x = 2,813,553.04
  5. Step 5: Solve for x
    x = 2,813,553.04/1,379.72
  6. Step 6: Final answer
    x = 2,039.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.