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Finding the Fourth Proportional to 1,179.26, 1,627.52 and 682.06

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Solution

The fourth proportional to 1,179.26, 1,627.52 and 682.06 is: 941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.26 : 1,627.52 = 682.06 : x
  2. Step 2: Convert to fraction form
    1,179.26/1,627.52 = 682.06/x
  3. Step 3: Cross multiply
    1,179.26x = 1,627.52 × 682.06
  4. Step 4: Simplify right side
    1,179.26x = 1,110,066.29
  5. Step 5: Solve for x
    x = 1,110,066.29/1,179.26
  6. Step 6: Final answer
    x = 941.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.