Home / 3,812.60-5,261.76-2,134.14

Finding the Fourth Proportional to 3,812.60, 5,261.76 and 2,134.14

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Solution

The fourth proportional to 3,812.60, 5,261.76 and 2,134.14 is: 2,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.60 : 5,261.76 = 2,134.14 : x
  2. Step 2: Convert to fraction form
    3,812.60/5,261.76 = 2,134.14/x
  3. Step 3: Cross multiply
    3,812.60x = 5,261.76 × 2,134.14
  4. Step 4: Simplify right side
    3,812.60x = 11,229,332.49
  5. Step 5: Solve for x
    x = 11,229,332.49/3,812.60
  6. Step 6: Final answer
    x = 2,945.33

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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.