Home / 1,719.26-2,372.62-1,020.64

Finding the Fourth Proportional to 1,719.26, 2,372.62 and 1,020.64

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Solution

The fourth proportional to 1,719.26, 2,372.62 and 1,020.64 is: 1,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.26 : 2,372.62 = 1,020.64 : x
  2. Step 2: Convert to fraction form
    1,719.26/2,372.62 = 1,020.64/x
  3. Step 3: Cross multiply
    1,719.26x = 2,372.62 × 1,020.64
  4. Step 4: Simplify right side
    1,719.26x = 2,421,590.88
  5. Step 5: Solve for x
    x = 2,421,590.88/1,719.26
  6. Step 6: Final answer
    x = 1,408.51

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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.