Home / 1,971.68-2,952.66-1,239.44

Finding the Fourth Proportional to 1,971.68, 2,952.66 and 1,239.44

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Solution

The fourth proportional to 1,971.68, 2,952.66 and 1,239.44 is: 1,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.68 : 2,952.66 = 1,239.44 : x
  2. Step 2: Convert to fraction form
    1,971.68/2,952.66 = 1,239.44/x
  3. Step 3: Cross multiply
    1,971.68x = 2,952.66 × 1,239.44
  4. Step 4: Simplify right side
    1,971.68x = 3,659,644.91
  5. Step 5: Solve for x
    x = 3,659,644.91/1,971.68
  6. Step 6: Final answer
    x = 1,856.10

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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.