Home / 1,965.20-2,714.74-1,861.52

Finding the Fourth Proportional to 1,965.20, 2,714.74 and 1,861.52

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Solution

The fourth proportional to 1,965.20, 2,714.74 and 1,861.52 is: 2,571.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.20 : 2,714.74 = 1,861.52 : x
  2. Step 2: Convert to fraction form
    1,965.20/2,714.74 = 1,861.52/x
  3. Step 3: Cross multiply
    1,965.20x = 2,714.74 × 1,861.52
  4. Step 4: Simplify right side
    1,965.20x = 5,053,542.80
  5. Step 5: Solve for x
    x = 5,053,542.80/1,965.20
  6. Step 6: Final answer
    x = 2,571.52

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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.