Home / 2,131.02-3,195.45-976.86

Finding the Fourth Proportional to 2,131.02, 3,195.45 and 976.86

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Solution

The fourth proportional to 2,131.02, 3,195.45 and 976.86 is: 1,464.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.02 : 3,195.45 = 976.86 : x
  2. Step 2: Convert to fraction form
    2,131.02/3,195.45 = 976.86/x
  3. Step 3: Cross multiply
    2,131.02x = 3,195.45 × 976.86
  4. Step 4: Simplify right side
    2,131.02x = 3,121,507.29
  5. Step 5: Solve for x
    x = 3,121,507.29/2,131.02
  6. Step 6: Final answer
    x = 1,464.79

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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.