Home / 2,940.13-4,407.12-2,158.97

Finding the Fourth Proportional to 2,940.13, 4,407.12 and 2,158.97

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Solution

The fourth proportional to 2,940.13, 4,407.12 and 2,158.97 is: 3,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.13 : 4,407.12 = 2,158.97 : x
  2. Step 2: Convert to fraction form
    2,940.13/4,407.12 = 2,158.97/x
  3. Step 3: Cross multiply
    2,940.13x = 4,407.12 × 2,158.97
  4. Step 4: Simplify right side
    2,940.13x = 9,514,858.98
  5. Step 5: Solve for x
    x = 9,514,858.98/2,940.13
  6. Step 6: Final answer
    x = 3,236.20

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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.