Home / 2,176.14-3,004.02-1,391.22

Finding the Fourth Proportional to 2,176.14, 3,004.02 and 1,391.22

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Solution

The fourth proportional to 2,176.14, 3,004.02 and 1,391.22 is: 1,920.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.14 : 3,004.02 = 1,391.22 : x
  2. Step 2: Convert to fraction form
    2,176.14/3,004.02 = 1,391.22/x
  3. Step 3: Cross multiply
    2,176.14x = 3,004.02 × 1,391.22
  4. Step 4: Simplify right side
    2,176.14x = 4,179,252.70
  5. Step 5: Solve for x
    x = 4,179,252.70/2,176.14
  6. Step 6: Final answer
    x = 1,920.49

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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.