Home / 1,719.91-2,589.96-1,236.34

Finding the Fourth Proportional to 1,719.91, 2,589.96 and 1,236.34

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Solution

The fourth proportional to 1,719.91, 2,589.96 and 1,236.34 is: 1,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.91 : 2,589.96 = 1,236.34 : x
  2. Step 2: Convert to fraction form
    1,719.91/2,589.96 = 1,236.34/x
  3. Step 3: Cross multiply
    1,719.91x = 2,589.96 × 1,236.34
  4. Step 4: Simplify right side
    1,719.91x = 3,202,071.15
  5. Step 5: Solve for x
    x = 3,202,071.15/1,719.91
  6. Step 6: Final answer
    x = 1,861.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.