Home / 1,965.75-2,714.36-1,719.92

Finding the Fourth Proportional to 1,965.75, 2,714.36 and 1,719.92

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Solution

The fourth proportional to 1,965.75, 2,714.36 and 1,719.92 is: 2,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.75 : 2,714.36 = 1,719.92 : x
  2. Step 2: Convert to fraction form
    1,965.75/2,714.36 = 1,719.92/x
  3. Step 3: Cross multiply
    1,965.75x = 2,714.36 × 1,719.92
  4. Step 4: Simplify right side
    1,965.75x = 4,668,482.05
  5. Step 5: Solve for x
    x = 4,668,482.05/1,965.75
  6. Step 6: Final answer
    x = 2,374.91

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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.