Home / 2,742.60-4,082.91-2,726.40

Finding the Fourth Proportional to 2,742.60, 4,082.91 and 2,726.40

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Solution

The fourth proportional to 2,742.60, 4,082.91 and 2,726.40 is: 4,058.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.60 : 4,082.91 = 2,726.40 : x
  2. Step 2: Convert to fraction form
    2,742.60/4,082.91 = 2,726.40/x
  3. Step 3: Cross multiply
    2,742.60x = 4,082.91 × 2,726.40
  4. Step 4: Simplify right side
    2,742.60x = 11,131,645.82
  5. Step 5: Solve for x
    x = 11,131,645.82/2,742.60
  6. Step 6: Final answer
    x = 4,058.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.