Home / 1,505.45-2,255.20-1,179.29

Finding the Fourth Proportional to 1,505.45, 2,255.20 and 1,179.29

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Solution

The fourth proportional to 1,505.45, 2,255.20 and 1,179.29 is: 1,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.45 : 2,255.20 = 1,179.29 : x
  2. Step 2: Convert to fraction form
    1,505.45/2,255.20 = 1,179.29/x
  3. Step 3: Cross multiply
    1,505.45x = 2,255.20 × 1,179.29
  4. Step 4: Simplify right side
    1,505.45x = 2,659,534.81
  5. Step 5: Solve for x
    x = 2,659,534.81/1,505.45
  6. Step 6: Final answer
    x = 1,766.60

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1.5x scale

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.