Home / 2,629.40-3,945.47-1,168.70

Finding the Fourth Proportional to 2,629.40, 3,945.47 and 1,168.70

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Solution

The fourth proportional to 2,629.40, 3,945.47 and 1,168.70 is: 1,753.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.40 : 3,945.47 = 1,168.70 : x
  2. Step 2: Convert to fraction form
    2,629.40/3,945.47 = 1,168.70/x
  3. Step 3: Cross multiply
    2,629.40x = 3,945.47 × 1,168.70
  4. Step 4: Simplify right side
    2,629.40x = 4,611,045.22
  5. Step 5: Solve for x
    x = 4,611,045.22/2,629.40
  6. Step 6: Final answer
    x = 1,753.65

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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.