Home / 1,179.15-1,627.25-668.14

Finding the Fourth Proportional to 1,179.15, 1,627.25 and 668.14

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Solution

The fourth proportional to 1,179.15, 1,627.25 and 668.14 is: 922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.15 : 1,627.25 = 668.14 : x
  2. Step 2: Convert to fraction form
    1,179.15/1,627.25 = 668.14/x
  3. Step 3: Cross multiply
    1,179.15x = 1,627.25 × 668.14
  4. Step 4: Simplify right side
    1,179.15x = 1,087,230.82
  5. Step 5: Solve for x
    x = 1,087,230.82/1,179.15
  6. Step 6: Final answer
    x = 922.05

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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.