Home / 3,812.57-5,261.59-2,133.91

Finding the Fourth Proportional to 3,812.57, 5,261.59 and 2,133.91

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Solution

The fourth proportional to 3,812.57, 5,261.59 and 2,133.91 is: 2,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.57 : 5,261.59 = 2,133.91 : x
  2. Step 2: Convert to fraction form
    3,812.57/5,261.59 = 2,133.91/x
  3. Step 3: Cross multiply
    3,812.57x = 5,261.59 × 2,133.91
  4. Step 4: Simplify right side
    3,812.57x = 11,227,768.76
  5. Step 5: Solve for x
    x = 11,227,768.76/3,812.57
  6. Step 6: Final answer
    x = 2,944.94

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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.