Home / 2,131.24-3,195.66-975.88

Finding the Fourth Proportional to 2,131.24, 3,195.66 and 975.88

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Solution

The fourth proportional to 2,131.24, 3,195.66 and 975.88 is: 1,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.24 : 3,195.66 = 975.88 : x
  2. Step 2: Convert to fraction form
    2,131.24/3,195.66 = 975.88/x
  3. Step 3: Cross multiply
    2,131.24x = 3,195.66 × 975.88
  4. Step 4: Simplify right side
    2,131.24x = 3,118,580.68
  5. Step 5: Solve for x
    x = 3,118,580.68/2,131.24
  6. Step 6: Final answer
    x = 1,463.27

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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.