Home / 1,450.87-2,177.74-1,129.75

Finding the Fourth Proportional to 1,450.87, 2,177.74 and 1,129.75

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Solution

The fourth proportional to 1,450.87, 2,177.74 and 1,129.75 is: 1,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.87 : 2,177.74 = 1,129.75 : x
  2. Step 2: Convert to fraction form
    1,450.87/2,177.74 = 1,129.75/x
  3. Step 3: Cross multiply
    1,450.87x = 2,177.74 × 1,129.75
  4. Step 4: Simplify right side
    1,450.87x = 2,460,290.88
  5. Step 5: Solve for x
    x = 2,460,290.88/1,450.87
  6. Step 6: Final answer
    x = 1,695.74

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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.