Home / 1,195.04-1,790.88-1,129.32

Finding the Fourth Proportional to 1,195.04, 1,790.88 and 1,129.32

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Solution

The fourth proportional to 1,195.04, 1,790.88 and 1,129.32 is: 1,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.04 : 1,790.88 = 1,129.32 : x
  2. Step 2: Convert to fraction form
    1,195.04/1,790.88 = 1,129.32/x
  3. Step 3: Cross multiply
    1,195.04x = 1,790.88 × 1,129.32
  4. Step 4: Simplify right side
    1,195.04x = 2,022,476.60
  5. Step 5: Solve for x
    x = 2,022,476.60/1,195.04
  6. Step 6: Final answer
    x = 1,692.39

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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.