Home / 2,126.41-2,934.40-1,182.20

Finding the Fourth Proportional to 2,126.41, 2,934.40 and 1,182.20

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Solution

The fourth proportional to 2,126.41, 2,934.40 and 1,182.20 is: 1,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.41 : 2,934.40 = 1,182.20 : x
  2. Step 2: Convert to fraction form
    2,126.41/2,934.40 = 1,182.20/x
  3. Step 3: Cross multiply
    2,126.41x = 2,934.40 × 1,182.20
  4. Step 4: Simplify right side
    2,126.41x = 3,469,047.68
  5. Step 5: Solve for x
    x = 3,469,047.68/2,126.41
  6. Step 6: Final answer
    x = 1,631.41

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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.