Home / 1,720.26-2,581.11-1,237.14

Finding the Fourth Proportional to 1,720.26, 2,581.11 and 1,237.14

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Solution

The fourth proportional to 1,720.26, 2,581.11 and 1,237.14 is: 1,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.26 : 2,581.11 = 1,237.14 : x
  2. Step 2: Convert to fraction form
    1,720.26/2,581.11 = 1,237.14/x
  3. Step 3: Cross multiply
    1,720.26x = 2,581.11 × 1,237.14
  4. Step 4: Simplify right side
    1,720.26x = 3,193,194.43
  5. Step 5: Solve for x
    x = 3,193,194.43/1,720.26
  6. Step 6: Final answer
    x = 1,856.23

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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.