Home / 2,743.11-3,786.90-1,695.78

Finding the Fourth Proportional to 2,743.11, 3,786.90 and 1,695.78

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Solution

The fourth proportional to 2,743.11, 3,786.90 and 1,695.78 is: 2,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.11 : 3,786.90 = 1,695.78 : x
  2. Step 2: Convert to fraction form
    2,743.11/3,786.90 = 1,695.78/x
  3. Step 3: Cross multiply
    2,743.11x = 3,786.90 × 1,695.78
  4. Step 4: Simplify right side
    2,743.11x = 6,421,749.28
  5. Step 5: Solve for x
    x = 6,421,749.28/2,743.11
  6. Step 6: Final answer
    x = 2,341.05

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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.