Home / 3,726.60-5,142.95-2,133.75

Finding the Fourth Proportional to 3,726.60, 5,142.95 and 2,133.75

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Solution

The fourth proportional to 3,726.60, 5,142.95 and 2,133.75 is: 2,944.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.60 : 5,142.95 = 2,133.75 : x
  2. Step 2: Convert to fraction form
    3,726.60/5,142.95 = 2,133.75/x
  3. Step 3: Cross multiply
    3,726.60x = 5,142.95 × 2,133.75
  4. Step 4: Simplify right side
    3,726.60x = 10,973,749.18
  5. Step 5: Solve for x
    x = 10,973,749.18/3,726.60
  6. Step 6: Final answer
    x = 2,944.71

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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.