Home / 1,785.25-2,677.88-1,172.85

Finding the Fourth Proportional to 1,785.25, 2,677.88 and 1,172.85

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Solution

The fourth proportional to 1,785.25, 2,677.88 and 1,172.85 is: 1,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.25 : 2,677.88 = 1,172.85 : x
  2. Step 2: Convert to fraction form
    1,785.25/2,677.88 = 1,172.85/x
  3. Step 3: Cross multiply
    1,785.25x = 2,677.88 × 1,172.85
  4. Step 4: Simplify right side
    1,785.25x = 3,140,751.56
  5. Step 5: Solve for x
    x = 3,140,751.56/1,785.25
  6. Step 6: Final answer
    x = 1,759.28

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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.