Home / 2,126.20-3,190.14-955.88

Finding the Fourth Proportional to 2,126.20, 3,190.14 and 955.88

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Solution

The fourth proportional to 2,126.20, 3,190.14 and 955.88 is: 1,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.20 : 3,190.14 = 955.88 : x
  2. Step 2: Convert to fraction form
    2,126.20/3,190.14 = 955.88/x
  3. Step 3: Cross multiply
    2,126.20x = 3,190.14 × 955.88
  4. Step 4: Simplify right side
    2,126.20x = 3,049,391.02
  5. Step 5: Solve for x
    x = 3,049,391.02/2,126.20
  6. Step 6: Final answer
    x = 1,434.20

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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.