Home / 2,125.12-2,932.62-1,180.86

Finding the Fourth Proportional to 2,125.12, 2,932.62 and 1,180.86

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Solution

The fourth proportional to 2,125.12, 2,932.62 and 1,180.86 is: 1,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.12 : 2,932.62 = 1,180.86 : x
  2. Step 2: Convert to fraction form
    2,125.12/2,932.62 = 1,180.86/x
  3. Step 3: Cross multiply
    2,125.12x = 2,932.62 × 1,180.86
  4. Step 4: Simplify right side
    2,125.12x = 3,462,996.04
  5. Step 5: Solve for x
    x = 3,462,996.04/2,125.12
  6. Step 6: Final answer
    x = 1,629.56

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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.