Home / 1,971.24-2,717.46-1,379.94

Finding the Fourth Proportional to 1,971.24, 2,717.46 and 1,379.94

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Solution

The fourth proportional to 1,971.24, 2,717.46 and 1,379.94 is: 1,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.24 : 2,717.46 = 1,379.94 : x
  2. Step 2: Convert to fraction form
    1,971.24/2,717.46 = 1,379.94/x
  3. Step 3: Cross multiply
    1,971.24x = 2,717.46 × 1,379.94
  4. Step 4: Simplify right side
    1,971.24x = 3,749,931.75
  5. Step 5: Solve for x
    x = 3,749,931.75/1,971.24
  6. Step 6: Final answer
    x = 1,902.32

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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.