Home / 1,719.23-2,578.70-1,310.58

Finding the Fourth Proportional to 1,719.23, 2,578.70 and 1,310.58

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Solution

The fourth proportional to 1,719.23, 2,578.70 and 1,310.58 is: 1,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.23 : 2,578.70 = 1,310.58 : x
  2. Step 2: Convert to fraction form
    1,719.23/2,578.70 = 1,310.58/x
  3. Step 3: Cross multiply
    1,719.23x = 2,578.70 × 1,310.58
  4. Step 4: Simplify right side
    1,719.23x = 3,379,595.92
  5. Step 5: Solve for x
    x = 3,379,595.92/1,719.23
  6. Step 6: Final answer
    x = 1,965.77

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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.