Home / 3,726.36-5,142.33-2,154.42

Finding the Fourth Proportional to 3,726.36, 5,142.33 and 2,154.42

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Solution

The fourth proportional to 3,726.36, 5,142.33 and 2,154.42 is: 2,973.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.36 : 5,142.33 = 2,154.42 : x
  2. Step 2: Convert to fraction form
    3,726.36/5,142.33 = 2,154.42/x
  3. Step 3: Cross multiply
    3,726.36x = 5,142.33 × 2,154.42
  4. Step 4: Simplify right side
    3,726.36x = 11,078,738.60
  5. Step 5: Solve for x
    x = 11,078,738.60/3,726.36
  6. Step 6: Final answer
    x = 2,973.07

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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.